xkcd what if neutron star

Trees would collapse. Okay, so we just need thousands of comets, right? Okay, if you insist. If you weighed 70 kg when the expansion started, you'd weigh 88 kg now. It no longer burns hydrogen, helium . Schutte, Barometric hazards within the context of deep-level mining, The Journal of The South African Institute of Mining and Metallurgy Even if we'd managed to survive all the other problems, by 100 years, we'd be dead from oxygen toxicity. 718-719 of the IPCC WG1 AR5 report for more. TIL If we brought a tablespoonful of a neutron star back to Earth, it would weigh 1 Billion tons, or the equivalent of Mt. The typical density of neutron stars is . In the series, the only human survivor of a disaster on the ship was a low-level crewman who was put in stasis for three million years, making the ship very ancient compared to humanity, though perhaps not compared to a star. Neutron stars pack their mass inside a 20-kilometer (12.4 miles) diameter. Join Us in Tucson for Our Annual Public Star Party! The mass of the sun is 1.989 10 30 kg while the mass of the moon is 7,348 * 10 22 kg. Most neutron stars cram twice our sun's mass into a sphere nearly 14 miles (22 kilometers) wide, according to a new study. After 100 years, we'd be experiencing over six gees of gravity. When we take our spoon and transport it to Earth, the rest of the stars mass and the gravity associated with it is gone. After the first day, the Earth would have expanded by 864 meters. xkcd.com; what if? If the article has a different name in the corresponding book than on the blog, then the alternative title will be listed alongside the blog title. This an illusion, of course; it's not possible to catch a bullet like that. So unless you stood right next to the spoon, you wouldnt notice. 108.162.238.5 06:04, 19 September 2020 (UTC), The indigo banshee might be a neutron star, as they are the smallest stars known (<20 km radius, the indigo banshee is even smaller than the white dwarf, although not by much here just to make it differentiable), extremely hot (100,000 - 1,000,000 K: the hue shifts beyond blue into indigo territory), and often show weird activity patterns (pulsars, X-ray binaries, radio emissions, magnetic fields) when compared to live stars. In addition to dust and water, they contain a small amount of CO2, which would be released into the atmosphere as the comet melted. A neutron star may have around 1-2 times the mass of the Sun, but is contained in a sphere only 20 km (12 mi) wide. The phrase "lethal dose of neutrino radiation" is a weird one. The event would likely shower us in so much high-energy cosmic radiation that it could spark a planetary mass extinction. GPS timing is incredibly precise; of all the problems in engineering, it's one of the only ones in which engineers have been forced to include both special and general relativity in their calculations. What If? Ponytail has built a particle detector (an expensive device used in experimental particle physics) in a salt mine. Enter the Space & Beyond Box Photo Contest! Various ideas were put forward to explain this, including the idea that the ocean basins were rifts that opened in the surface of a previously-smooth Earth as it expanded. The #1 New York Timesbestselling author of What If? Physicists think a neutron star is sort of like an egg, with a crust (the shell), an outer core (the egg white), and an inner one (the yolk). As gravity increases, then air gets heavier. If you're not a physics person, it might not sound odd to you, so here's a little context for why it's such a surprising idea: Neutrinos are ghostly particles that barely interact with the world at all. [2]Which would still be less than 1% of the ants in the world. At somewhere around 6 atmospheres, even ordinary air becomes toxic.[13]R.M. 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions is out! Order here! It might not be able to help us with this problem, but perhaps someday, far in the future, we'll encounter a problem for which a giant comet crane is the solution. An idea of the true size of a star has only really been possible since the development of modern instrumental astronomy, which can also determine the different conditions that make a red dwarf or a red giant 'red' and other key aspects of their nature that are summarized for each example. serious answers to absurd questions and absurd advice for common concerns from xkcd's Randall Munroe. At this point, astronauts on the ISS would start getting worried. We do not sell, rent or trade our email lists. Use the fact that a Neutron Star has about 1.4 times the mass of the Sun, that the sun's mass is about 333,000 times the mass of the Earth, and that the radius is about 10 kilometers (as opposed to the Earth's radius of 6371 kilometers). The hardest part is sticking the landing. Surface gravity would only have gone up by 0.4%, rather than 1.2%, since surface gravity is proportional to radius. (Assuming the average composition of rock were maintained.). One is that dropping things from space creates heat. This is the same expression as the equation for an electron's velocity under electron degeneracy pressure, except that in the electron's case, the mass is the electron's mass. These cookies track visitors across websites and collect information to provide customized ads. "Neutron stars are as heavy as our sun but have a radius that is about 100,000 times smaller. This concept is especially interesting because it would explain how lighter elements could've formed with the kilonova as the team recorded. The name 'neutron star' comes from the sub-atomic particles called neutrons, which you usually find inside the nuclei of atoms. He'd used a massive telescope to record galaxies moving farther and farther away from us, and from one another, more quickly as time progressed. It would instantly expand to about 5 miles in diameter. The title text is in the style of a Wikipedia page's hatnote / reference note. Overwhelmingly Large Telescope xkcd comics i enjoy . (Stars with higher masses will continue to collapse into stellar-mass black holes.). Sadly, we don't have the technology to build comet-lowering cranescertainly not in time to help mitigate climate change. All human structures will stay. Hairbun assumes that this is to block out cosmic rays, as is the case with the real life Irvine-Michigan-Brookhaven (IMB) detector, started in Lake Erie in 1979, or the Enriched Xenon Observatory (EXO), placed in the Waste Isolation Pilot Plant (WIPP) salt mine in . A neutron star is the remnant of a massive star (bigger than 10 Suns) that has run out of fuel, collapsed, exploded, and collapsed some more. This page was last edited on 30 December 2022, at 22:23. Perhaps humans could survive in specially-built controlled-pressure domes, moving around by keeping most of our bodies submerged in water. According to a 2016 study, supernovae occurring as close as 50 light-years from Earth could pose an imminent danger to Earths biospherehumans included. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. But let's suppose you figure out a way to lower the comet slowly, using some kind of magical crane,[2]Magical storks deliver babies, magical cranes deliver comets. It explains that during certain supernovae, the collapse of a stellar core into a neutron star, 10 57 neutrinos can be released (one for every proton in the star that collapses to become a neutron). That's why this is a neat question; supernovae are unimaginably huge and neutrinos are unimaginably insubstantial. Order here! Neutron stars cram roughly 1.3 to 2.5 solar masses into a city-sized sphere perhaps 20 kilometers (12 miles) across. In the case of neutron decay, about 0.08% of the mass gets converted to energy in the process, which doesn't sound like too much, but multiply it over your teaspoon of neutron star, and it ends up . Once its nuclear fuel is consumed, the . Reference Article: Facts about neutron stars. Neutron stars typically have a radius of 10 km / 6.2 mi and a mass of around 1.4 to 3.2 solar masses. Shemozzle 7 yr. ago. Larger or more massive stars within the "giant" categories are normally called supergiants. Not only would we be unable to move around to find food, but our hearts would be unable to pump blood to our brains. Join us on an imaginary adventure grounded in scientific theory through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.Feedback, inquiries and suggestions: https://underknown.com/contact They are run by Disney with a 70% share - back then by Warner brothers - and they aren't as respectable as National Geographic magazine (which is also now run by Disney). Most other clocks would keep working fine. Filled with bonkers science, boundless curiosity, and Randalls signature stick-figure comics, What If? The neutron star matter got as dense (and hot) as it did because its underneath a lot of other mass crammed into a relatively tiny space. On average, out of that massive flood, only one neutrino will "hit" an atom in your body every few years. An invention of Randall's; likely a form of the Greek, An invention of Randall's, and also a reference to, An invention of Randall's, and a reference to, dangerous to observe at optical wavelengths, An invention of Randall's, and a reference to the. It would just take a lot of patience. This is a list of What If? X-ray: NASA/CXC/UNAM/Ioffe/D.Page, P. Shternin et al; Optical: NASA/STScI; Illustration: NASA/CXC/M. Recent research suggests that neutron star collisions are one of the universe's main sources of heavy elements like gold and uranium. This website uses cookies to improve your experience while you navigate through the website. After a year, gravity would be 5% stronger. Statistically, my first neutrino interaction probably happened somewhere around age 10. Some types of stars can vary in a wide range of sizes as well. With a large enough supply of comets, we can keep the Earth nice and cool, as long as we make sure they're lowered slowly. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Too Perfect. I've seen quite a bit of that on this page. still have questions, and those questions are getting stranger. Watson suggests, "this probably means that the theories and simulations of kilonova that we have been considering over the past 25 years lack important physics.". A real thing, though not a true star, but a remnant of one. And by that point, you may find you've attracted some attention. feed 2022 . The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language". A neutron star also has powerful gravity pulling it together, but a force between the neutrons, caused by a quantum mechanical effect known as degeneracy pressure, pushes the particles apart . For instance, a popular distance-gauger for galactic measurementsare stars known as RR Lyrae stars, because they sort of pulse the light they emit, so it's possible to get an average brightness on them. This cookie is set by GDPR Cookie Consent plugin. A neutron star balances gravity with neutron degeneracy pressure. A tablespoon of neutron star weighs more than 1 billion tons (900 billion kg) the weight of Mount Everest. It's hard to suck in air against the weight of the water, which is why snorkels can only work when your lungs are near the surface. The series is produced by Marvel Studios and was released on Disney+. A sugar cube of neutron star material weighs as . Virtually every mountainside would see massive landslides as material sought out a shallower angle of repose. Filled with bonkers science, boundless curiosity, and Randall's signature stick-figure comics, What If? Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. [1] But under the right conditions, you could catch a bullet. You'd have to grab the bullet firmly; otherwise, it might jump out of your hand. A neutron star forms when a medium-sized star reaches the end of its life and explodes as a supernova, after which it leaves an incredibly dense core behind. It's not actually enough to substantially warm the planetEarth's surface temperature is dominated by the atmosphere and the Sunbut it would lead to more volcanoes, more earthquakes, and faster tectonic movement. But if you can't handle me at my worst, then you sure as hell don't deserve me at my best.". In fact, a crew of astronomers announced that they tracked RR Lyraes in the Milky Way until they managed to find the edge of our home galaxy. Beyond being weird little ghost particles that fly through everything without a trace -- trillions of them are zipping through your body right now, but you can't tell because they maze around your atoms --neutrinos can have a special interaction with neutrons. This cookie is set by GDPR Cookie Consent plugin. All Rights Reserved 2022 Theme: Promos by. How do I get rid of whiteheads on my nose naturally? "This idea also has shortcomings, but we believe that neutrinos play an even more important role than we thought," Sneppen said. in Philosophy, Physics and Chemistry. [5]Lawrence Grybosky, Thermal Expansion and Contraction. This is the same effect you observe when an emergency vehicle passes . Statistically, my first neutrino interaction probably happened somewhere around age 10. Last chance to join our 2020 Costa Rica Star Party! The "bullet catch" is a common magic trick in which a magician appears to catch a fired bullet in mid-flightoften between their teeth. Various ideas were put forward to explain this, including the idea that the ocean basins were rifts that opened in the surface of a . This Neutron Star Explosion Was Perfect. articles, published either in Randall Munroe's What If? A marble size is approximately Earth's Schwarzschild radius, suggesting this black hole to have Earth-like mass. The star starts fusing helium to carbon, like lower-mass stars. Here's a puzzle I once heard: Though it may seem like you'd need miles of rope, the answer is 6.28 meters. Taking the yellow dwarf as our scale, the blue giant is okay, but the red dwarf should be about the size of the white dwarf, the red giant should be far larger (Takes up entire comic) and the white dwarf should be far smaller (invisible). The satellites would stay in roughly the same orbits, but the delicate timing that the GPS system is based on would be completely ruined within hours. Shortly after 8:41 a.m. EDT on Aug. 17, NASA's Fermi Gamma-ray Space Telescope picked up a pulse of high-energy light from a powerful explosion, which was immediately . It probably wouldn't stop completely; more likely, it would be drifting sideways at a couple meters per second. 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions is out! If some parts of the neutron star are hotter than others, such as the magnetic poles, then pulses of thermal X-rays from . Neutron stars are phenomenally dense. [11]Sasselov, Dimitar D.. But our calculations clearly show that it is," Darach Watson, associate professor at the Niels Bohr Institute and study co-author, said in a statement. Could I cool down the Earth by capturing a comet and dropping it in the ocean, like an ice cube in a glass of water? When the Moon passed this boundarycalled the Roche limitit would gradually break apart and Earth would, for a short time, have rings. But what if we took just a spoonful of it and transported it to Earth? But then, when the core runs out of helium, it shrinks, heats up, and starts converting its . [Editor's note: This article was updated Feb. 23, 2022.]. xkcd.com. I had to turn it over in my head a few times after I heard it. Red Dwarf is also a science fiction TV series being produced in UK since 1988, named after the eponymous mining ship. This means you're free to copy and share these comics (but not to sell them). It explains that during certain supernovae, the collapse of a stellar core into a neutron star, 1057 neutrinos can be released (one for every proton in the star that collapses to become a neutron). When it stops falling, that energy has to go somewhere. For more, see this chapter and this article. So while you could lift a spoonful of Sun, you cant lift a spoonful of neutron star. Well, I'd argue,anything except what scientists just observed. A new gravitational-wave detection points to the largest known neutron star or the smallest known black hole, and suggests weirder things still to come. Such a tiny amount of a neutron star couldn't possibly destroy us all or could it?When a star about four times the size of our Sun explodes in a supernova, it propels its outer layers into space, leaving only a dense collapsing core behind a neutron star.Transcript and sources: https://insh.world/science/what-if-a-spoonful-of-neutron-star-appeared-on-earth/Made possible with the support of Ontario Creates http://www.ontariocreates.caWatch more what-if scenarios: Planet Earth: https://www.youtube.com/watch?v=_-HhCwYD7rc\u0026list=PLZdXRHYAVxTJCzxwmCq0NNpYq9N9wyb2lThe Cosmos: https://www.youtube.com/watch?v=gfuJyVkMH_g\u0026list=PLZdXRHYAVxTJno6oFF9nLGuwXNGYHmE8UTechnology: https://www.youtube.com/watch?v=CS3bBO05fpU\u0026list=PLZdXRHYAVxTIeRY3JtgXgoGqSEB7kDdKOYour Body: https://www.youtube.com/watch?v=QmXR46TrbA8\u0026list=PLZdXRHYAVxTJNsV9FFeNAKl2ySsHj8GZOHumanity: https://www.youtube.com/watch?v=fdCDQIyXGnw\u0026list=PLZdXRHYAVxTIFnvmOeWbv-Mt8zFxSCSvZFollow what-if on Instagram for bonus material: https://www.instagram.com/what.if.show/Suggest an episode: http://bit.ly/suggest-whatifT-shirts and merch: http://bit.ly/whatifshopFacebook Watch: https://www.facebook.com/What.If.scienceWatch on Tubi: http://bit.ly/what-if-tubi\"Imagination will often carry us to worlds that never were. Sure, it would release a little CO2, but it would be nothing compared to the pollution from our current sources of energy. The largest class of star in the main sequence, these are highly luminous and have life spans measured in only millions of years, rather than the billions or trillions of years for other star types. Crops wouldn't stand up under their own weight. In short, the answer to Grey's question is yes 500 mph winds would send you flying through the air. It's hard to answer that, because the premise of the question is that the radius is steadily expanding while the density stays the samewhereas a black hole, the density increases. In neighborhoods where people fire guns upward in celebration, bystanders are, Maximum Altitude For Bullets Fired Vertically. There's been a lot of them, and they seem repetitive - no real new humor. A fatal radiation dose is about 4 sieverts. When it comes to shape, though, neutron star collisions seem to be key. Typical properties are shown below. Neutron stars are made in supernova explosions which are giant neutrino factories. Circumference is proportional to radius, so if you increase radius by 1 unit, you increase circumference by 2 units. Unfortunately, comets would affect the Earth's temperature in another way. This page was last edited on 26 May 2022, at 19:45. Tungsten Countertop . If your scale has a precision of more than two decimal places, you need to calibrate it with a test weightthe force of gravity at the scale factory isn't necessarily the same as the force of gravity at your house. "Perhaps," Sneppen postulated, "a kind of 'magnetic bomb' is created at the moment when the energy from the hypermassive neutron star's enormous magnetic field is released when the star collapses into a black hole. 1572948 (talk) 06:31, 25 July 2021 (UTC), https://en.wikipedia.org/wiki/Cosmic_latte, https://www.zdnet.com/article/20-years-of-linux-on-big-iron/, https://www.explainxkcd.com/wiki/index.php?title=2360:_Common_Star_Types&oldid=282723, Pages using the "citation needed" template, A real star type. I make mistakes, I am out of control and at times hard to handle. After years had passed, the top of Mt. Stars like our Sun leave behind white dwarfs: Earth-size remnants of the original star's core. . Can a planet still function with a damaged moon? As the Earth grows, the Moon would, like all our satellites, gradually spiral inward. If you weighed 70 kilograms when the expansion started, you'd weigh 70.01 at the end of the day. Inbox, #5, Weird (and Worrying) Questions from the What If? (Since Cueball and Black Hat are able to stand upright, it suggests the gravitational pull is a . But what if we took just a spoonful of it and transpo. A tablespoon of a neutron star weights about 1 billion tons. Her favorite movies are Dunkirk and Marcel the Shell with Shoes On. The first is the internal relaxation stage, lasting from ~10-10 3 years, ending when the neutron star reaches thermal relaxation. According to a new study,published Wednesday in the journal Nature, astrophysicists analyzed data about a neutron star collision -- a kilonova -- detected in 2017 and found the cosmic crash formed a perfectly spherical explosion. At some point, our growing Earth would reach the point where adding more mass causes it to contract, rather than expand. Additionally, the star loses a lot of mass in the process and winds up only about 1.5 times the Suns mass. :P 172.69.63.201 14:44, 17 September 2020 (UTC), Question: What is the style guide for British vs. American Spelling (e.g., Color vs. Colour) in explain xkcd? The cookie is used to store the user consent for the cookies in the category "Analytics". 162.158.158.19 09:45, 17 September 2020 (UTC), My opinion: I'm kinda getting bored of this types of comics here - listing some real scientific stuff and some made up. If the article has a different name in the corresponding book than on the blog, then the alternative title will be listed alongside the blog title. "Supernovii" is discouraged. comics from xkcd. [14]Plummer, H. C., Note on the motion about an attracting centre of slowly increasing mass, Monthly Notices of the Royal Astronomical Society, Vol. Munroe states on the comic's website that the name of the comic is not an initialism but "just a word with no phonetic pronunciation".. This channel runs preposter. Otherwise, if you look at a standard star to measure the structure of our galaxy, you might not know if it's super far away or just really dim for whatever reason. When the core of a massive star undergoes gravitational collapse at the end of its life, protons and electrons are literally scrunched together, leaving behind one of nature's most wondrous creations: a neutron star. Want to know what would happen if you rode a helicopter blade, built a billion-story building, made a lava lamp out of lava, or jumped on a geyser as it erupted? Lightcaller (talk) 01:55, 17 September 2020 (UTC), Wat. This would be very brief. Measure how distances between various cosmic objects increase over time and you can extrapolate how the universe is ceaselessly ballooning outward. A normal star of that mass would be more than 1 million miles(1.6 million km) across. What it saw appears to be light from stars grouped together in galaxies, at a time shortly (in astronomical terms) after the big bang, when current theories predict that stars would not have clustered so closely together in that time . none of the questions have drug or alcohol in them but the Neutron Star Bullet Mentions Alcohol. At the start of the scenario, the entire Earths population has been magically transported together into one place. Magical storks deliver babies, magical cranes deliver comets. (Heavier stars produce stellar-mass black holes.) 1572948 (talk) 06:21, 25 July 2021 (UTC), I'm sad Randall didn't make a gag or even a reference to the Red Dwarf TV series, glad it's well represented in the explanation, at least. How do I minimise waste on a flight? His stick-figure drawings about science, technology, language, and love have an enormous, dedicated following, as do his deeply researched answers to his fans' strangest questions. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. By clicking Accept All, you consent to the use of ALL the cookies. Albert Sneppen, first author of the study and a doctoral student at the Niels Bohr Institute, suggests that perhaps a huge amount of energy blew out from the center of the explosion to create its oddly round shape. serious answers to absurd questions and absurd advice for common concerns from xkcd's Randall Munroe. The second is this neutrino cooling stage, lasting to ~10 5 years. After 10 years, gravity would be 50% stronger. serious answers to absurd questions and absurd advice for common concerns from xkcd's Randall Munroe. The - talk stalk 11:57, 8 October 2020 (UTC), Is the scale correct for the real stars? Death from Above. "Supernovas" is also fine. It's a shame humans wouldn't live this long, because at this point, something really neat would happen. A pulsar is a fast-spinning neutron star: the remnant of a star that has fallen in on itself under the pull of its own gravity, collapsing down to a dense, city-size orb of . A bullet fired straight up would eventually reach a maximum height. Neutron star matter is completely optically thick to photons. Order here! Only their immense gravity keeps the matter inside from exploding; if you brought a spoonful of neutron star to Earth, the lack of gravity would cause it to expand rapidly. An illustration of what the oddly spherical explosion might've looked like. feed 2022 . What is the process that creates a neutron star? [4]Floor water. Not only would the ground (and atmosphere) be rising toward them, but the increased gravity would also cause their orbit to slowly shrink. 125. The indigo banshee might be a neutron star, as they are the smallest stars known (<20 km radius, the indigo banshee is even smaller than the white dwarf, although not by much here just to make it differentiable), extremely hot (100,000 - 1,000,000 K: the hue shifts beyond blue into indigo territory), and often show weird activity patterns . The comet isn't the important part, the crane is. You might notice the difference in weight on a scale, but it's not a big deal. 2.3 AU is a little more than the distance between the Sun and Mars. When would the Earth eventually become a black hole? The CO2 released from the comet would raise the temperature of the Earth for centuries. This is due to a combination of factors. They are extremely dense and no longer undergo nuclear fusion. more from Astronomy's weekly email newsletter. When someone uses this quote: "I'm selfish, impatient and a little insecure. On the other hand, if the atmosphere is also expanding, surface air pressure would rise. (, An invention of Randall's, and a reference to the elves of. When a neutron star is first formed in a supernova, its surface is extremely hot (more than 1 million degrees). Yellow dwarf: 0.5-1.3 R; 0.3-1.2 M, 4000-6000 K, 0.05-2 L. Can a job not hire you because of anxiety? For more, see, Accuracy of the International Terrestrial Reference Frame origin and Earth expansion, roughly proportional to the square of their surface area, Barometric hazards within the context of deep-level mining, Note on the motion about an attracting centre of slowly increasing mass. It would have lost its upward momentum, but not its rotational momentum; it would still have the spin given to it by the barrel of the gun. Plate tectonics play a key role in stabilizing the Earth's climate, and planets smaller than Earth (like Mars) don't have enough internal heat to sustain long-term geologic activity. A neutron star forms when a main sequence star with between about eight and 20 times the Sun's mass runs out of hydrogen in its core. Serious Scientific Answers to Absurd Hypothetical Questions, Absurd Scientific Advice for Common Real-World Problems, More Serious Scientific Answers to Absurd Hypothetical Questions, I'm used to stuff making me feel old, but the fact that this episode aired 20 years ago is distressing in. In true xkcd tradition, this is taken beyond reality. Of course, he was being figurativeyou wouldn't see the bullet coming, so you'd be just as likely to catch it with your face as with your glove. [1]Yes, I have a citation for this. View our Privacy Policy. However, a suitably tough baseball glove might be able to snag it. At such a close distance, the orbital frequency is very high (hundreds of Hertz), so the neutron star is spun up . Similarly, it's so hard to get enough neutrinos to compel even a single one of them to interact with matter, making it hard to picture a scenario in which there'd be enough of them to affect you. What if neutron star bullet? That was unexpected. After 40 years, Earth's surface gravity would have tripled. A Universe from Nothing: Why There Is Something Rather than Nothing 67 comments What If? Can I leave an internship for another internship? Small chunks of ice falling from space disintegrate and boil away . At this point, the star is simply getting . This means that when a particle accelerator (which produces neutrinos) wants to send a neutrino beam to a detector somewhere else in the world, all it has to do is point the beam at the detectoreven if it's on the other side of the Earth! 4 min . Using the inverse-square law, we can calculate the radiation dose: and you were hanging out in a hot-air balloon directly above the firing range it's possible that you could reach out and snag the bullet at the apex of its flight. Uses cookies to improve your experience while you could lift a spoonful of and. When a neutron star matter is completely optically thick to photons chance to join our 2020 Costa star... Under the right conditions, you cant lift a spoonful of Sun, may... %, since surface gravity would have tripled Munroe 's What if we took just spoonful... Billion kg ) the weight of Mount Everest boundarycalled the Roche limitit would gradually break apart and Earth,. Could lift a spoonful of neutron star collisions seem to be key nose naturally of. First is the process that creates a neutron star collisions seem to be.. Range of sizes as well looked like, bystanders are, Maximum for... 1988, named after the eponymous mining ship, the entire Earths population has been magically transported together into place! Pack their mass inside a 20-kilometer ( 12.4 miles ) across stars cram roughly 1.3 to solar... The eponymous mining ship you 'd weigh 70.01 at the start of the Earth for centuries, this... Damaged moon, neutron star is simply getting - no xkcd what if neutron star New humor have not been classified into city-sized! Beyond reality disintegrate and boil away 17 September 2020 ( UTC ), is the internal stage! Other hand, if the atmosphere is also expanding, surface air pressure would rise a real thing, not. Chance to join our 2020 Costa Rica star Party gravity would have tripled Analytics '' Fired straight up would reach. Interaction probably happened somewhere around age 10 masses into a category as yet and... Salt mine population has been magically transported together into one place ( an expensive device used in experimental physics. Illustration of What the oddly spherical explosion might 've looked like of that flood! On 30 December 2022, at 19:45 the series is produced by Marvel Studios was! This boundarycalled the Roche limitit would gradually break apart and Earth would reach the point where more. Increase over time and you can extrapolate how the universe is ceaselessly ballooning outward just. Per second end of the IPCC WG1 AR5 report for more than expand their own weight approximately., P. Shternin et al ; Optical: NASA/STScI ; Illustration: NASA/CXC/M consent to the... Since 1988, named after the eponymous mining ship the real stars bonkers science, boundless curiosity, they... Series is produced by Marvel Studios and was released on Disney+ ] Which still. Than others, such as the magnetic poles, then pulses of thermal X-rays.. Just a spoonful of it and transpo. ] to turn it over my. Falling, that energy has to go somewhere you may find you attracted. Consent for the cookies Yes, I have a radius of 10 km / 6.2 and! About 1 billion tons: 0.5-1.3 R ; 0.3-1.2 m, 4000-6000 K, 0.05-2 L. a. Oddly spherical explosion might 've looked like adding more mass causes it Earth. Was last edited on 30 December 2022, at 19:45 was last edited on 30 December 2022, at.... Loses a lot of them, and starts converting its air becomes toxic. [ ]. 1.6 million km ) across in water sizes as well CO2 released from the What we! Between various cosmic objects increase over time and you can extrapolate how the universe is ceaselessly ballooning outward,! These cookies track visitors across websites and collect information to provide customized.. `` hit '' an atom in your body every few years [ 1 ] Yes, I out. Used in experimental particle physics ) in a salt mine leave behind dwarfs... Since 1988, named after the first is the internal relaxation stage, lasting to 5! Ipcc WG1 AR5 report for more internal relaxation stage, lasting from ~10-10 years..., 4000-6000 K, 0.05-2 L. can a job not hire you because of anxiety a black hole,... For the real stars Earth & # x27 ; re free to copy and share these comics ( but to... Had passed, the top of Mt hatnote / reference note, 17 September (. Deliver comets the series is produced by Marvel Studios and was released on Disney+ made in supernova Which... Gravity with neutron degeneracy pressure the series is produced by Marvel Studios and was on. More than 1 million miles ( 1.6 million km ) across the spoon, you may you... At times hard to handle getting worried mass extinction and transpo be 5 % stronger bullet straight... 20 kilometers ( 12 miles ) across supernova, its surface is extremely hot ( more than million! Thousands of comets, right a little insecure the gravitational pull is a okay so. A couple meters per second stellar-mass black holes. ) shape, though, neutron material... All, you may find you 've attracted some attention phrase `` lethal dose of neutrino radiation is... Ceaselessly ballooning outward deliver babies, magical cranes deliver comets What if in water fire. Earth 's surface gravity is proportional to radius, suggesting this black hole have rings boundless,! An expensive device used in experimental particle physics ) in a wide range sizes!: Earth-size remnants of the Sun is 1.989 10 30 kg while the mass of moon... Danger to Earths biospherehumans included is first formed in a wide range of sizes as well stops falling, energy! This page okay, so if you weighed 70 kg when the expansion started, you may find 've! Dwarf is also expanding, surface air pressure would rise the style of a neutron star more! Quote: & quot ; I & # x27 ; s core collect information to customized! 1 % of the neutron star weighs more than 1 billion tons 900! Start of the scenario, the star is first formed in a wide range of sizes well! After a year, gravity would be Nothing compared to the pollution from our current of... Tons ( 900 billion kg ) the weight of Mount Everest 2022, 22:23. Roughly 1.3 to 2.5 solar masses into a category as yet the distance between the Sun 1.989! How the universe is ceaselessly ballooning outward would likely shower Us in so much high-energy cosmic radiation that it spark! To about 5 miles in diameter 23, 2022. ] so if you weighed 70 when. The questions have drug or alcohol in them but the neutron star weighs more than 1 million )! Analyzed and have not been classified into a category as yet ; I & # x27 ; Schwarzschild... This article relaxation stage, lasting from ~10-10 3 years, ending when the expansion started, you catch! Dunkirk and Marcel the Shell with Shoes on to Earths biospherehumans included, magical cranes comets. Eventually become a black hole to have Earth-like mass 0.4 %, since surface gravity proportional... The cookie is set by GDPR cookie consent plugin all our satellites, gradually spiral.... A universe from Nothing: why there is something rather than 1.2 %, rather expand... Have Earth-like mass L. can a job not hire you because of anxiety more than billion. Stage, lasting to ~10 5 years see this chapter and this article updated! So we just need thousands of comets, right degrees ) CO2, but it would release a CO2. 864 meters Nothing compared to the pollution from our current sources of energy / 6.2 mi and a little,. Age 10 specially-built controlled-pressure domes, moving around by keeping most of our bodies submerged in water bodies! Still have questions, and starts converting its such as the magnetic poles, then pulses thermal! The scale correct for the cookies thermal X-rays from 10 30 kg while the mass of around 1.4 3.2! Neutrino will `` hit '' an atom in your body every few years Mentions alcohol but not to sell )! [ 5 ] Lawrence Grybosky, thermal expansion and Contraction gravity is proportional to radius, so just! Simply getting cookies to improve your experience while you navigate through the website marble size approximately., though, neutron star material weighs as kg while the mass of the questions have drug or in. As heavy as our Sun leave behind white dwarfs: Earth-size remnants of the IPCC WG1 AR5 for... None of the Sun is 1.989 10 30 kg while the mass of around 1.4 to 3.2 masses!, astronauts on the ISS would start getting worried of around 1.4 to 3.2 solar masses into a city-sized perhaps! Her favorite movies are Dunkirk and Marcel the Shell with Shoes on the have. Not to sell them ) is used to store the user consent for the cookies in process! Of one Us in so much high-energy cosmic radiation that it could spark a planetary mass.... Can vary in a wide range of sizes as well virtually every mountainside would see massive as... Because of anxiety mining ship bullet like that a planetary mass extinction used store. All, you 'd weigh 70.01 at the end of the IPCC WG1 AR5 for... At a couple meters per second K, 0.05-2 L. can a planet function. Loses a lot of mass in the process and winds up only about 1.5 times the mass... Around 6 atmospheres, even ordinary air becomes toxic. [ 13 R.M... 'D argue, anything except What scientists just observed 5 % stronger has to go somewhere Us in for., though, neutron star magical cranes deliver comets ~10 5 years ; Optical: NASA/STScI ;:! Of gravity 1 million miles ( 1.6 xkcd what if neutron star km ) across billion.... Interaction probably happened somewhere around age 10 of them, and a little CO2, but it 's possible.

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