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Something peculiar in my 2yo's bedroom led me to a revelation about our universe
- apapapa 3y agoNon-x link?
- wulfmann 3y agoIts a twitter thread
- jiggawatts 3y agoWhich is unreadable to people without X accounts…
- allarm 3y agoAnd everybody and their mom have twitter account nowadays, right?
- adastra22 3y agoIt’s an X post, so what would a non-X link be?
- apapapa 3y agoIt would be nice (I think that you knew that)
- grey_earthling 3y agoA link to an alternative front-end, e.g. https://news.ycombinator.com/item?id=39154536 https://news.ycombinator.com/item?id=39154536
- erik_seaberg 3y agoIt’s about the quasi-satellite https://en.wikipedia.org/wiki/(524522)_2002_VE68 https://en.wikipedia.org/wiki/(524522)_2002_VE68. The author also gave a talk at https://radiolab.org/podcast/zoozve https://radiolab.org/podcast/zoozve.
- 9woc 3y agoYou can also paste the X link into https://threadreaderapp.com/ https://threadreaderapp.com/. The link for this is https://threadreaderapp.com/thread/1750952860131729544.html https://threadreaderapp.com/thread/1750952860131729544.html
- b0ner_t0ner 3y agoInstall "Redirect Twitter To Nitter" userscript.
- irowe 3y agoI spent way too long trying to find a way to read this without making an account on X, so here's the recap: An illustrator accidentally mislabelled a quasi-satellite named 2002-VE68 as a moon of Venus called “ZOOZVE" on a children's map (Venus doesn't have any proper moons).
- xorbax 3y agoYes, the story is essentially linked to a podcast called Radiolab* that has used the story as a story pitch about submitting the name for the the asteroid. The link isn't the thing-itself, it's part of a media campaign. The naming committee apparently has two dangling votes left for the decision. The podcast came out today and the decision is expected in the next few weeks. * I originally said Reply-All
- Kluggy 3y agoAre you sure it was Reply-All? Their latest show listed is Sept 2023 on https://gimletmedia.com/shows/reply-all https://gimletmedia.com/shows/reply-all and nothing newer shows up in my podcast app.
- boomboomsubban 3y agoThey meant Radiolab https://radiolab.org/podcast/zoozve https://radiolab.org/podcast/zoozve
- xorbax 3y agoYep. I loaded the app, looked at the name, and screwed it up.
- xorbax 3y agoYeah, I donked it. I think there was some serious drama around Reply-All - they both float in the same shallow pool
- k310 3y agoIt's a thread, and mere mortals without accounts see only the OP (OT?) I'm starting to get the hang of nitter.net and here's the thread. https://nitter.lanterne-rouge.info/latifnasser/status/1750952860131729544#m https://nitter.lanterne-rouge.info/latifnasser/status/175095... Other nitter instances were rate-limited or down. This one worked for me. It's actually interesting.
- thunderbong 3y agoThank you. That was wonderful! I couldn't figure out from the linked X (formerly Twitter) post what it was all about. I think it's time for the good samaritans of HN to post nitter links for every X (formerly Twitter) post. Also, is there some extension which I could add in the browser which would show the corresponding Nitter link?
- jchw 3y agoLibredirect is the tool I typically use to get redirected to one of these sorts of mirror sites. That said, it won't pick a working Nitter instance, you might need to look up a list and find a few that work well.
- SushiHippie 3y agoMost of the time you can just replace twitter.com with nitter.net or nitter.it but when these instances are down or blocked you can use other instances listed here: https://github.com/zedeus/nitter/wiki/Instances https://github.com/zedeus/nitter/wiki/Instances But as the other commenter said Libredirect is the way to go: https://libredirect.github.io/ https://libredirect.github.io/
- grey_earthling 3y agoOr you can prepend "farside.link/" — https://news.ycombinator.com/item?id=39154536 https://news.ycombinator.com/item?id=39154536
- SushiHippie 3y ago:( oh well, not anymore: https://news.ycombinator.com/item?id=39161194 https://news.ycombinator.com/item?id=39161194
- pxue 3y ago[flagged]
- FooBarBizBazz 3y agoThe thread is about an object in our solar system, called 2002 VE. Its motion under the influence of gravity isn't clearly "an orbit", but (for now) it sort of follows closed loops when viewed from the moving frame of Venus, so people call it a quasi-moon of Venus. Figure 4 in this paper shows the object's trajectory in the frame of Venus: https://arxiv.org/pdf/1208.4444.pdf https://arxiv.org/pdf/1208.4444.pdf
- grey_earthling 3y agoThis object is “2002 VE68”; “2002 VE” is the designation of a different minor planet: https://en.m.wikipedia.org/wiki/Provisional_designation_in_astronomy https://en.m.wikipedia.org/wiki/Provisional_designation_in_a...
- fritzo 3y ago> we don’t live in a big clockwork, we live in a dance club These chaotic orbits remind me of the chaotic solar system in Liu Cixin's novel "The Three-Body Problem". And they give me the same sense of terror that we can't predict where these objects will go.
- pdonis 3y ago> we can't predict where these objects will go Only on time scales like thousands of years or more, that are too long to worry about as far as any danger to Earth is concerned. On shorter time scales we can predict orbits very accurately, which is how astronomers know about objects that will pass near Earth decades in advance.
- dreamcompiler 3y ago> Anyway, I think this is so cool because everything else on the solar system map is so regular and orderly, but not quasi-moons! Nothing in the solar system is regular and orderly. It's chaotic because 3-body problems are almost always chaotic, and >3-body problems are always chaotic. Our solar system is a hundred-body problem (or more depending how small a "body" you want to include). So why then does our solar system mostly appear to be regular and orderly? Because of the time scales we care about, and because for the majority of bodies (not Zoozve!), only one other body produces the overwhelming majority of gravitational influence. Which means we can cheat and treat many very short-term predictions as 2-body problems. Over a one-month timeframe we can predict the solar system analytically as a bunch of 2-body problems. Easy. Over a few hundred years we can use numerical methods. Harder, but it mostly works well enough. Over a million-year timeframe it's completely hopeless. We have no idea where Venus will be exactly a million years from today. Edit: 10 million years is a better threshold for hopelessness. A million years is still somewhat predictable for some bodies. https://en.m.wikipedia.org/wiki/Stability_of_the_Solar_System https://en.m.wikipedia.org/wiki/Stability_of_the_Solar_Syste...
- ycdxvjp 3y agoSimilar to Hurricanes but were we can't tell where they will be next week.
- dreamcompiler 3y agoExactly the same mathematical phenomenon (chaos) but the timescales are different.
- chmod600 3y agoWe must have some idea where the planets were back in the time of dinosaurs. I mean, Earth was still approximately the same distance from the Sun, and presumably still #3 right?
- dreamcompiler 3y agoProbably the order of the planets was the same but we can't be sure of the eccentricity of their orbits back then. We do know Saturn probably didn't have rings back then.
- deleted 3y ago[deleted]
- farmdve 3y agoI think we should really limit links where we need an account or to pay to read articles.
- neonate 3y agohttps://nitter.unixfox.eu/latifnasser/status/1750952860131729544 https://nitter.unixfox.eu/latifnasser/status/175095286013172... https://nitter.lanterne-rouge.info/latifnasser/status/1750952860131729544 https://nitter.lanterne-rouge.info/latifnasser/status/175095...
- tzs 3y agoI think he's off a little in this part: > Zoozve orbits one thing: the sun. It spends all day every day doing that. BUT Venus also has a teeny gravitational toehold on it such that it ALSO ORBITS VENUS AT THE SAME TIME. > It’s a whole new category of thing. Something that orbits a star and a planet at once. Something that is not a moon, but also not not a moon. > They call it … a quasi-moon. > Astronomers had been speculating that such an object could exist for 100+ years, but this was the first time anyone saw one … not only in our solar system but in the entire universe!! He then goes one to describe how weird the paths of quasi-moons can be. Where I think he's off is that it was not that Zoozve was orbiting both the Sun and Venus that was new. Astronomers have for hundreds of years known of a case of something orbiting both the Sun and a planet (see below). What was new was the weirdness of the orbit. The long known example of something orbiting both the Sun and a planet is the Moon. The Wikipedia article on the orbit of the moon [1] has a plot showing a section of the Earth's and Moon's trajectories around the Sun and you can see from it that they both trace a convex shape. That's because the Sun's pull on the Moon is about twice as strong as the Earth's. From the Sun's point of view both Earth and Moon are in separate orbits that have been distorted so that they are rounded dodecahedrons. They are like two cyclists racing on a circular track, taking turns passing each other on the inside but at all times both are turning left. Compare to other (non-quasi) moons. Most (all?) of them are more attracted gravitationally to their planet than to the Sun. The plots would not be convex. From the Sun's point of view plots of their paths would look like something from a spirograph. If alien astronomers knew of the Earth and Moon but did not know their sizes, so all they had was their masses and orbits, they would probably actually classify them as a double planet rather than a planet and a moon. What disqualifies the Moon from being a planet under the current Earth astronomy definition is that the center of mass of the Earth/Moon system is below the surface of the Earth. [1] https://en.wikipedia.org/wiki/Orbit_of_the_Moon https://en.wikipedia.org/wiki/Orbit_of_the_Moon
- rendall 3y agoZoozve is definitely a better name than 2002-VE
- spiderxxxx 3y agoMight as well add 2060 Chiron to the list...
- mproud 3y agoZogoch!
- mproud 3y agoIt’s happening! https://en.wikipedia.org/w/index.php?title=Zoozve&action=history https://en.wikipedia.org/w/index.php?title=Zoozve&action=his...