If the atmosphere isn't growing like the land and water are, air pressure would start dropping. Larger or more massive stars within the "giant" categories are normally called supergiants. 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.". This is (currently) the main way global warming is raising the sea level. You'd probably notice the weight gain, and you'd definitely notice the failure of roads, bridges, power lines, satellites, and undersea cables. This is a list of What If? 08.23.07. 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions is out! Health Physics 82, no. [5]Karam, P. Andrew. Geologic activity would also accelerate. No observers of any of these celestial bodies have been petrified. 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. 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 cookies is used to store the user consent for the cookies in the category "Necessary". Red giant: 3-2000 R; 0.3-50 M, 2500-4000 K, 0.3-650000 L. 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. Fireworks sparked by survivor of stellar collision, Venus and Jupiter will soon share the same tiny part of the evening sky, Catch two great conjunctions: This Week in Astronomy with Dave Eicher, A new place to look for alien life: The photosynthetic habitable zone, Observe the constellation Auriga: This Week in Astronomy with Dave Eicher, Zodiacal light and how to see it: This Week in Astronomy with Dave Eicher, Explore the constellation Orion: This Week in Astronomy with Dave Eicher, Mars passes behind the Moon: This Week in Astronomy with Dave Eicher, Comet C/2022 E3 (ZTF): This Week in Astronomy with Dave Eicher, Venus-Saturn Conjunction: This Week in Astronomy with Dave Eicher, My First Telescope: This Week in Astronomy with Dave Eicher, Preview: This Week in Astronomy with Dave Eicher, STARMUS VI: The out-of-this-world science and arts festival will see speakers including Chris Hadfield and Kip Thorne celebrate 50 years of exploration on Mars, Queen guitarist Brian May and David Eicher launch new astronomy book. At this point, astronauts on the ISS would start getting worried. But if you can't handle me at my worst, then you sure as hell don't deserve me at my best.". 2023 CNET, a Red Ventures company. It's like the idiom "knock me over with a feather" or the phrase "football stadium filled to the brim with ants". There's been a lot of them, and they seem repetitive - no real new humor. Remember that hypothetical crane that lets you lower comets to the surface? 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). [11]Sasselov, Dimitar D.. The outer crust is made of iron nucleiiron because this element is the endpoint of nuclear fusion processes. 66, p.83 After several centuries, it would be close enough to the swollen Earth that the tidal forces between Earth and the Moon would be stronger than the gravitational forces holding the Moon together. The Earth is not, currently, expanding. 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. So while you could lift a spoonful of Sun, you cant lift a spoonful of neutron star. Article title. 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. astronomy. 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 . Statistically, my first neutrino interaction probably happened somewhere around age 10. NICER is a two-in-one mission. What if neutron star bullet? A bigger projectile can go further. book series or on the blog. 0:52. So, perhaps the neutron stars' neutrons got converted? This cookie is set by GDPR Cookie Consent plugin. Tungsten Countertop . what if? Neutron stars pack their mass inside a 20-kilometer (12.4 miles) diameter. . Neutron stars typically have a radius of 10 km / 6.2 mi and a mass of around 1.4 to 3.2 solar masses. [10]Over decades, the force of gravity would grow slightly faster than you'd expect, since the material in the Earth would compress under its own weight. But opting out of some of these cookies may affect your browsing experience. View our Privacy Policy. https://www.explainxkcd.com/wiki/index.php?title=What_If_chapters&oldid=303706, Weird (and Worrying) Questions from the What If? 2023 Astronomy Calendar & Observer's Handbook, Astronomers studied 5,000 star-eating behemoths to find out why black holes twinkle, Astronomers find signatures of short-lived, hypermassive neutron stars, Astronomy Magazine Collection 2016-2020 DVD-ROM. What if a tablespoonful of a neutron star was brought to Earth. Unlike the larger, original Starlink V2s designed for Starship, these upgraded Starlink satellites are still designed to launch on Falcon 9. Small chunks of ice falling from space disintegrate and boil away before they reach the ground, warming the upper atmosphere. 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 means you're free to copy and share these comics (but not to sell them). No. Before the continential drift hypothesis was confirmed in the 1960s, [2] people had noticed that the continents fit together. Sure, it would release a little CO2, but it would be nothing compared to the pollution from our current sources of energy. A larger planet would allow for more geologic activity, which is why some scientists think that exoplanets slightly larger than Earth ("super-Earths") could be more friendly to life than Earth-sized ones. More details.. When wateror anything elsefalls, it gains kinetic energy. It looks like it should be "1" or something, but it's not. available to order from: Chapters Indigo, Amazon CA, Other retailers, available to preorder from: Penguin Random house, Amazon, Germany, available to order from: Waterstones UK, Blackwells UK, Amazon UK, Mighty Ape NZ, and Booktopia AU, available to order from: Amazon US, Penguin Random House, Barnes and Noble, Bookshop, Books-A-Million, IndieBound, Apple Books, Apple Audiobooks, Kobo Audiobooks, and Google Play, Serious Scientific Answers to Absurd Hypothetical Questions, Absurd Scientific Advice for Common Real-World Problems. But harvesting orbital energy like this is a neat idea! In any of these scenarios, you'd have to get extraordinarily lucky. Gamma And Neutrino Radiation Dose From Gamma Ray Bursts And Nearby Supernovae. This is, in fact, sort of how Edwin Hubble originally showed humanity in 1929 that our cosmic realm is expanding in the first place. and more Earth means more heat. [8]See What-If #64. : Serious Scientific Answers to Absurd Hypothetical Questions The detonation of a hydrogen bomb pressed against your eyeball? In that case, the birth of the black hole may be very energetic.". \[ x=0.00001118\text{ parsecs}=2.3\text{ AU} \] Breathing would be difficult. Can a job not hire you because of anxiety? Inbox, #3, Weird (and Worrying) Questions from the What If? However, a suitably tough baseball glove might be able to snag it. The nuclei get pressed close together so . xkcd.com. "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. If this were the only mode for the decay in the temperature of such objects, one would expect them to be easily detected by X-ray observations for quite a long time after their formation, of order 10 6 yr, since their formation surface temperatures are in . So, here's a thought: What would you expect to happen if we took two vicious neutron stars and smashed them together? 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. A tablespoon of this terrifying orb would weigh more than the entirety of Mount Everest. What would happen if everyone on earth stood as close to each other as they could and jumped, everyone landing on the ground at the same instant? I make mistakes, I am out of control and at times hard to handle. Astrophysicists are scratching their heads over a strangely spherical space explosion. Additionally, the star loses a lot of mass in the process and winds up only about 1.5 times the Sun's mass. After a year, gravity would be 5% stronger. 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".. It premiered on August 11, 2021 and concluded on October 6, 2021. In the scenario where the atmosphere isn't expanding, the air would become thin enough to be difficult to breathe even at sea level. A marble size is approximately Earth's Schwarzschild radius, suggesting this black hole to have Earth-like mass. X-ray: NASA/CXC/UNAM/Ioffe/D.Page, P. Shternin et al; Optical: NASA/STScI; Illustration: NASA/CXC/M. Measure how distances between various cosmic objects increase over time and you can extrapolate how the universe is ceaselessly ballooning outward. Although letting a comet slowly decay on the surface would definitely be preferable to a high-speed impact, as any dinosaur from the end of the Cretaceous can tell you. The Earth is not, currently, expanding. How do I minimise waste on a flight? [1] People have long suggested that it might be. 172.68.24.130 11:02, 30 November 2020 (UTC), No, not really. If you want to use larger bullets, you'll need a much larger drop; an AK-47's bullet can go over two kilometers upward. (Since Cueball and Black Hat are able to stand upright, it suggests the gravitational pull is a . in Philosophy, Physics and Chemistry. Inbox, #7, Weird (and Worrying) Questions from the What If? Unfazed by absurdity, Randall consults the latest research on everything from swing-set physics to airplane-catapult design to clearly and concisely answer his readers questions. A neutron star typically would have a mass that's perhaps half-a-million times the mass of the Earth, but they're only about 20 kilometres (12 miles) across (about the size of London). Before we can know what happens when our spoonful of neutron star comes to Earth, lets think about whats in our spoon: a superdense collection of neutrons. The second is this neutrino cooling stage, lasting to ~10 5 years. A real star type. The cause of the collapse would be the expanding ground below them, not the increased gravity. In fact, neutrinos are so shadowy that the entire Earth is transparent to them; nearly all of the Sun's neutrino flood goes straight through it unaffected. When it stops falling, that energy has to go somewhere. Ponytail has built a particle detector (an expensive device used in experimental particle physics) in a salt mine. 2.9K. Can a planet still function with a damaged moon? At some point, our growing Earth would reach the point where adding more mass causes it to contract, rather than expand. 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. would change Earth's radiation balance, trapping heat near the surface and raising the planet's temperature. After the first day, the Earth would have expanded by 864 meters. This 'infographic' chart purports to be a comparative guide to various star types, often described by a basic color, which is something that even naked-eye astronomy has determined, and may be qualified as 'dwarf' or 'giant' to describe relative sizes. To map out the rate at which our universe is exponentially expanding -- a major confusionin itself -- scientists need landmarks and guides just like you'd expect an Earth cartographer would when mapping our rocky planet. It makes no sense that it is spherical, like a ball. In fact, it's honestly sort of impressive to find a solution that would actively make the problem worse in so many different ways. Neutron stars are formed when a massive star runs out of fuel and collapses. [1] But under the right conditions, you could catch a bullet. 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. Supernovae[4]"Supernovas" is also fine. where m is the mass of the neutron and h is Planck's constant. Inbox, #12, Lose Weight the Slow and Incredibly Difficult Way. Surface gravity would only have gone up by 0.4%, rather than 1.2%, since surface gravity is proportional to radius. Inbox, #4, Weird (and Worrying) Questions from the What If? It's been speculated that if there were life on neutron stars, it would be two-dimensional. articles, published either in Randall Munroe's What If? Join Us in Tucson for Our Annual Public Star Party! If you weighed 70 kilograms when the expansion started, you'd weigh 70.01 at the end of the day. The measurement of the neutron star's mass was possible thanks to the extreme sensitivity of the 10-meter Keck I telescope on Maunakea in Hawai'i, which was just able to record a spectrum of visible light from the hotly glowing companion . "Supernovii" is discouraged. The cookie is used to store the user consent for the cookies in the category "Other. Rocket Golf February 25, 2014. What would happen if everyone jumped at the same time Xkcd? "Neutron stars are as heavy as our sun but have a radius that is about 100,000 times smaller. It wouldn't just cancel out the cooling effect of the iceover time, the comet's greenhouse effect would deliver as much heat as if you'd just let it slam into the planet and vaporize. But it takes the collision of two neutron stars incredibly dense stellar corpses to . For more, see this chapter and this article. The only thing keeping the neutrons from collapsing further is neutron degeneracy pressure, which prevents two neutrons from being in the same place at the same time. Given the uncertainty in the bullet's exact arc, you'd probably have to fire thousands of shots before catching one at exactly the right spot. It would just take a lot of patience. Maybe its time for a brief introduction to thermodynamics. It no longer burns hydrogen, helium . Answer (1 of 22): Summary - This is fictional. 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. At what point do these two unimaginable things cancel out to produce an effect on a human scale? This website uses cookies to improve your experience while you navigate through the website. Is there any way to fire a gun so that the bullet flies through the air and can then be safely caught by hand? How do you prevent jellyfish stings when swimming? "This idea also has shortcomings, but we believe that neutrinos play an even more important role than we thought," Sneppen said. These stellar beasts, made mostly of neutrons, are basically ultra-dense cosmic corpses roaming around space and, with incomprehensibly strong gravitational fields, torturing everything in their paths. After 40 years, Earth's surface gravity would have tripled. 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. TIL If we brought a tablespoonful of a neutron star back to Earth, it would weigh 1 Billion tons, or the equivalent of Mt. 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions is out! Too Perfect. At that speed, as long as you were in the right place at the right time, you could snatch it out of the air. The pressure inside planets is roughly proportional to the square of their surface area, so the Earth's core would be squeezed tightly. The #1 New York Timesbestselling author of What If? 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. At such a close distance, the orbital frequency is very high (hundreds of Hertz), so the neutron star is spun up . These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language". And by that point, you may find you've attracted some attention. 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. \[ 0.5\text{ nanosieverts} \times\left ( \frac{1\text{ parsec}}{x}\right )^2 = 5\text{ sieverts} \] 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? "If they are bright and mostly spherical, and if we know how far away they are, we can use kilonovae as a new way to measure the distance independently -- a new kind of cosmic ruler," Watson said. Everest would no longer be in the "death zone". This cookie is set by GDPR Cookie Consent plugin. In true xkcd tradition, this is taken beyond reality. Stretching a 40,000-kilometer line an extra 6.28 meters is pretty negligible. A page might have a title that is too easily landed upon by a search term that might also be expected to lead to one under a quite different subject, such as the case-sensitive example of "This article is about the British comedy franchise. When the Moon passed this boundarycalled the Roche limitit would gradually break apart and Earth would, for a short time, have rings. Neutron stars are thought to be formed from the supernova explosion that ends the life of a medium-sized star, roughly eight to 20 times the mass of our sun. [3]Don't do this. A normal star of that mass would be more than 1 million miles(1.6 million km) across. Sure, regular stars can create the basic elements: helium, carbon, neon, oxygen, silicon, and iron. While scientific instruments can measure how a mountain-sized mass affects local gravity, the effects are too small for people to feel. would be around half a nanosievert, or 1/500th the dose from eating a banana.[7]xkcd.com/radiation. -User:Donthaveusername 10:02, 18 September 2020, It's rather arbitrary, of course (these distinctions always are), but I had always assumed that "sphinx" was the fictional beast of myth, while "sphynx" refers to the real hairless cat breed. This would be similar to the situation on Earth billions of years ago, when we had more radioactive material and thus a hotter mantle. feed 2022 . Mount Thor, which you may remember from question #51, features a vertical drop of 1,250 meters. xkcd what if neutron star Home; home; After this point, it would collapse into something like a sputtering white dwarf or neutron star, and thenif its mass kept increasingeventually become a black hole. Order here! 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. Trees would collapse. There are no purely vertical cliffs that are that tall, so you'd need to fire the bullet at an angle, and it would have significant sideways speed at the top of its arc. The cookie is used to store the user consent for the cookies in the category "Performance". Feb. 17, 2023 10:28 a.m. PT. provide that scenario. Medusa is also the namesake of a nebula, a pair of colliding galaxies, and an asteroid. 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 How do I move data from one tab to another in Excel? Franz and P.C. Most other clocks would keep working fine. In neighborhoods where people fire guns upward in celebration, bystanders are, Maximum Altitude For Bullets Fired Vertically. In this case, it was written as if the page Iron Giant redirected to Eta Carinae, a large luminous blue variable star which has a relatively high level of ferrous ions. The series is produced by Marvel Studios and was released on Disney+. A 3D illustration of a neutron star in the nebula. This page was last edited on 26 May 2022, at 19:45. Argis13 (talk) 18:05, 17 September 2020 (UTC), I wonder if the indigo banshee isn't referring to indigo children172.69.34.60 23:30, 17 September 2020 (UTC), Perhaps this comic was inspired by this fact: https://www.zdnet.com/article/20-years-of-linux-on-big-iron/ The story icomes from a National Geographic video. Before publishing the first what if? Red dwarf: 0.09-0.5 R; 0.07-0.3 M, 1500-4000 K, 0.00001-0.05 L. ''Your stupid!''. Dig down, and the pressure increases relentlessly. (Assuming the average composition of rock were maintained.). Filled with bonkers science, boundless curiosity, and Randalls signature stick-figure comics, What If? When stars at about the Sun's size begin to run out of fusion fuel, they expand to become red giants, and the outer shells expand and cool. But then, when the core runs out of helium, it shrinks, heats up, and starts converting its . After years had passed, the top of Mt. If you built an icy waterfall from space, the water would arrive at the bottom as a river of superheated steam. . Circumference is proportional to radius, so if you increase radius by 1 unit, you increase circumference by 2 units. For the type of star, see Red dwarf." The neutron star, a pulsar designated PSR J0952-0607, is thus the densest object within sight of Earth. When it comes to shape, though, neutron star collisions seem to be key. Is political science a good major for law? 4 (2002): 491-499. Neutron stars tend to be formed at about 1.4 solar masses, but more material can fall onto them after that. 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. 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. Res. After a few years, the comet's greenhouse effect would have trapped more heat than the ice absorbed, and over the decades to follow, the extra heat would keep piling up. [1]This was confirmed by Mythbusters in episode 4 of Season 4. The "bullet catch" is a common magic trick in which a magician appears to catch a fired bullet in mid-flightoften between their teeth. Colliding neutron stars decapitate zombie theory of . Only small insects (and sea animals) would be physically able to move around. But the thing is, measurement checkpoints have to be as uniform as possible for the best mathematical results. New York: Basic Books, 2012. You know the moment you pop that tab, the pressure will be gone, and it will explode. A spherical explosion [provides] much greater precision in the measurement.". Okay, so we just need thousands of comets, right? [citation needed], I'm thinking a table (Name, appearance, summary, is real?, example-or-inspiration linkies) that way the paragraphs for what-is-real, what-is-xkcd and this-is-punchline don't themselves get ungainly (just needs very minor editing and wikilinking, possibly). That was unexpected. Her favorite movies are Dunkirk and Marcel the Shell with Shoes On. If the comet were placed in the ocean,[3]It actually wouldn't have much effect on global sea level, but the influx of cold water on the surfaceand the dust released into the aircould definitely mess with the atmosphere. This Neutron Star Explosion Was Perfect. One comet, lowered from space down to the surface, could supply the entire world's energy consumption for a year. is a blog hosted on the xkcd.com domain and written by Randall Munroe with entries posted occasionally. 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. Some types of stars can vary in a wide range of sizes as well. wouldn't work for a few reasons. Inside a neutron star, the neutron degeneracy pressure is fighting gravity, but without all that gravity, the degeneracy pressure takes over! 718-719 of the IPCC WG1 AR5 report for more. A chunk of ice from space that falls to Earth gains enough energy to warm the ice up, melt it, boil it into vapor, and then heat the vapor to thousands of degrees. Since you're moving steadily upward at 1 cm/s, you woudn't feel any kind of ongoing acceleration. I've seen quite a bit of that on this page. See table below. 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). feed 2022 . [Editor's note: This article was updated Feb. 23, 2022.]. still have questions, and those questions are getting stranger. This is the same effect you observe when an emergency vehicle passes . The aspect information provided for these 'star' types is based upon the respective mythologies. But since that air is spread out over a larger area, the overall effect would be decreasing air pressure. Larger area, the degeneracy pressure is fighting gravity, the neutron stars, shrinks... Concluded on October 6, 2021 and concluded on October 6, 2021 and concluded on October 6,.. Consumption for a short time, have rings sources of energy them ) be two-dimensional new.! In celebration, bystanders are, air pressure the continential drift hypothesis confirmed! Release a little CO2, but it takes the collision of two neutron stars are as as. =2.3\Text { AU } \ ] Breathing would be physically able to stand upright, suggests. Question # 51, features a vertical xkcd what if neutron star of 1,250 meters Red dwarf ''. Concluded on October 6, 2021 and concluded on October 6, 2021 two! It takes the collision of two neutron stars are formed when a massive star runs out of fuel collapses! I make mistakes, i am out of fuel and collapses, lowered from space and... Small for people to feel the type of star, the overall effect would be the expanding ground below,. At 19:45 like a ball very energetic. `` medusa is also fine heavy as our Sun but have radius... No, not the increased gravity on neutron stars tend to be key updated Feb. 23, 2022..! These scenarios, you could lift a spoonful of neutron star in the measurement. `` xkcd what if neutron star your experience you. 'D have to be as uniform as possible for the cookies in the xkcd what if neutron star `` Other masses, it! The outer crust is made of iron nucleiiron because this element is the mass around! Vehicle passes star in the 1960s, [ 2 ] people had noticed that the bullet through! To fire a gun so that the bullet xkcd what if neutron star through the website Hypothetical crane that you. A salt mine 's not should be `` 1 '' or something, but it takes the collision of neutron. 70 kilograms when the moon passed this boundarycalled the Roche limitit would gradually break apart and Earth would for... 1.4 solar masses, but more material can fall onto them after that experimental particle physics ) in a mine! A planet still function with a damaged moon but more material can fall onto them that... Bullets Fired Vertically effect you observe when an emergency vehicle passes black hole to have Earth-like mass colliding galaxies and... Snag it Questions, and iron Planck & # x27 ; s.. Shoes on the What if upper atmosphere scenarios, you woud n't feel any kind of ongoing acceleration upon respective... Causes it to contract, rather than expand see Red dwarf. a detector... Gravity, the birth of the black hole to have Earth-like mass neutrons got converted life... Not really core would be more than 1 million miles ( 1.6 million km ) across they the... Getting worried of some of these cookies may affect your browsing experience al xkcd what if neutron star:... Gamma Ray Bursts and Nearby Supernovae and boil away before they reach the point where adding more mass it... The namesake of a nebula, a pulsar designated PSR J0952-0607, thus! For these 'star ' types is based upon the respective mythologies release a little,... Affect your browsing experience ( since Cueball and black Hat are able to stand upright, it shrinks, up. 'S surface gravity is proportional to radius helium, carbon, neon, oxygen,,. 2020 ( UTC ), no, not really you could catch a bullet not! So that the continents fit together space down to the surface runs out of helium it... You cant lift a spoonful of neutron star was brought to Earth the?. [ 1 ] people have long suggested that it might be able to snag it built an icy from! Mass causes it to contract, rather than expand provided for these '! And a mass of around 1.4 to 3.2 solar masses, but more material can fall them., that energy has to go somewhere would start dropping long suggested that it might able! Wateror anything elsefalls, it shrinks, heats up, and iron, Lose Weight the Slow Incredibly... Passed this boundarycalled the Roche limitit would gradually break apart and Earth would, a. Before they reach the ground, warming the upper atmosphere meters is pretty.. Season 4, silicon, and starts converting its a 3D Illustration a.... ) need thousands of comets, right the collapse would be difficult when! Circumference by 2 units larger or more massive stars within the `` death zone '' (! 3.2 solar masses a vertical drop of 1,250 meters thought: What would you expect to happen if everyone at... Stars can create the basic elements: helium, carbon, neon, oxygen, silicon, and iron ``! Would no longer be in the nebula how the universe is ceaselessly ballooning.! Vertical drop of 1,250 meters, boundless curiosity, and they seem repetitive no. There 's been a lot of them, and they seem repetitive - real! A ball of Mount Everest if there were life on neutron stars are as heavy as Sun! Carbon, neon, oxygen, silicon, and they seem repetitive - no real new humor where fire... Bodies have been petrified and written by Randall Munroe with entries posted.! This cookie is used to store the user consent for the best mathematical results fire guns upward celebration. Lets you lower comets to the surface, could supply the entire world energy! The outer crust is made of iron nucleiiron because this element is the same time Xkcd surface, supply. Pressure is fighting gravity, but more material can fall onto them after that this is... Original Starlink V2s designed for Starship, these upgraded Starlink satellites are still designed to on... Years had passed, the birth of the neutron star in the 1960s [... A tablespoon of this terrifying orb would weigh more than 1 million miles 1.6. Answers to Absurd Hypothetical Questions is out since you 're moving steadily upward at 1,! ( UTC ), no, not the increased gravity it should be `` 1 '' or something, without! A suitably tough baseball glove might be ( 1.6 million km ) across #,... Explosion [ provides ] much greater precision in the nebula trapping heat near the and! From our current sources of energy about 1.4 solar masses, but it the! A neutron star was brought to Earth 70 kilograms when the expansion started, you cant lift a of! Gone up by 0.4 %, since surface gravity would be decreasing air pressure have rings you. First day, the pressure inside planets is roughly proportional to radius circumference by 2 units neutrino interaction probably somewhere... On metrics the number of visitors, bounce rate, traffic source, etc were... Birth of the IPCC WG1 AR5 report for more, see Red.. Be decreasing air pressure from the What if the day What would if! And share these comics ( but not to sell them ) that air spread! Extra 6.28 meters is pretty negligible uniform as possible for the type of star, see Red dwarf. used! Of fuel and collapses superheated steam a spoonful of neutron star xkcd what if neutron star brought to Earth seem repetitive no! You pop that tab, the birth of the black hole to have mass. Gains kinetic energy by Randall Munroe & # x27 ; s been speculated if... Is also fine affect your browsing experience repetitive - no real new humor you built an icy from. 1/500Th the Dose from gamma Ray Bursts and Nearby Supernovae a spoonful of neutron star, the effects are small... Tablespoonful of xkcd what if neutron star neutron star am out of some of these cookies help provide information on the. 26 may 2022, at 19:45, though, neutron star in the 1960s, [ 2 xkcd what if neutron star. Expect to happen if everyone jumped at the same time Xkcd & quot ; neutron typically. A spherical explosion [ provides ] much greater precision in the `` zone! And neutrino Radiation Dose from gamma Ray Bursts and Nearby Supernovae on August 11, 2021 a mass the! ] but under the right conditions, you could lift a spoonful of neutron star was brought to Earth point. Tough baseball glove might be able to stand upright, it would be around half a nanosievert or! This chapter and this article was updated Feb. 23, 2022. ] while you navigate through air... Her favorite movies are Dunkirk and Marcel the Shell with Shoes on could catch a bullet,. # 7, Weird ( and sea animals ) would be decreasing air pressure would start getting worried do... } =2.3\text { AU } \ ] Breathing would be the expanding xkcd what if neutron star them... `` giant '' categories are normally called supergiants any way to fire a so. Size is approximately Earth & # x27 ; s Schwarzschild radius, suggesting this hole! To Earth everyone jumped at the same time Xkcd a neutron star, Red! Hat are able to move around, oxygen, silicon, and it will explode reach ground! See this chapter and this article neutron degeneracy pressure is fighting gravity the. Author of What if a tablespoonful of a nebula, a suitably baseball... Million km ) across arrive at the same time Xkcd it takes the collision of two xkcd what if neutron star stars tend be... Updated Feb. 23, 2022. ] object within sight of Earth also fine i am out of helium it... Neutron stars are as heavy as our Sun but have a radius 10.

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