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The astronomy that’s been making headlines recently is all deep-space stuff — the search for planets like our own orbiting distant suns in galaxies most of us have never heard of. But there’s plenty of fascinating stuff left to be discovered in our own backyard, so to speak — that is, within the Milky Way. Just a few years ago the Huygens probe touched down on the Saturnian moon of Titan, discovering a bizarre world the texture and color of which one scientist likened to Crème brûlée, landing near a mist-enshrouded shoreline and drainage channels that led to a methane sea. Pretty darn cool, all told.
Add one more oddity to the list: deep in the Kuiper Belt, an icy region beyond the planets where Pluto makes its home, astronomers have discovered a cigar-shaped dwarf planet called Haumea. It’s as big across as Pluto is, but shaped like a squashed cigar. Astronomers began paying attention to it when they noticed an object that got brighter and dimmer every few hours, which seemed to indicate a seriously fast rate of spin — so fast that a round planet like Pluto would be ripped apart by gravity. It seems that it’s this spin — the same force that makes Earth bulge a bit in the middle — that elongated Haumea into a cigar shape, making it the fastest spinning object in the solar system.
Another strangeness is that this cigar- (or football, depending on whom you ask) shaped object has not one but two satellites — more than any other Kuiper Belt object. All of which would make the experience of standing on Haumea’s surface a uniquely strange experience: its super-fast rotation would make you very light, since the faster an object spins the more it has the effect of throwing you off into space. Add to that the very dim, cold sun rising and setting every 90 minutes or so, throwing fast-moving shadows across the icy landscape beneath your feet, and lighting up one or the other of the two ice moons above you. Bring crampons and a parka, and stay tuned for more news of the weird from our very own solar system.
Via livescience.
This is very interesting, and I didn’t know about it, but even cursory research suggests that this isn’t NEWS, as such. Haumea was discovered more than five years ago, even if it was only named as such in September 2008.
posted by Stephan on 6-23-2009 at 9:16 am
Although I can understand avoiding standard news media, which seem to strive more for entertainment than accurate information, the idea of coming to the floss for news is novel.
This is where I go to discover amazing facts. Most of the cosmic stuff happened millions of years ago. For up-to-the-minute coverage of what was going on a few thousand years ago, check out the Astrophysical Journal.
posted by Tom on 6-23-2009 at 9:59 am
But does Titan taste like creme brulee?
posted by Josh on 6-23-2009 at 10:44 am
Was there any mention of 4 elephants on the back of a tortoise? Perhaps we have discovered Disc World!
posted by Sarah on 6-23-2009 at 11:38 am
Talk about interesting I wonder if sciencists know how fast the object is circling or if they know how to measure it?
posted by Kari on 6-23-2009 at 12:59 pm
That’s pretty awesome! According to the diagram, the Kuiper Belt is on the same plane as the planets, right? So, Pluto is still just kinda doing it’s own thing? I think the Oort Cloud is pretty interesting and mysterious, too.
posted by Shasta on 6-23-2009 at 1:38 pm
Cold and only quick glimpses of the sun? Sounds like Alaska
posted by Nick on 6-23-2009 at 1:45 pm
Pluto has 3 satellites. It is still considered a Kuiper belt object isn’t it? 3 is more than 2 right? I’m just saying.
posted by Drew on 6-23-2009 at 1:55 pm
I am curious about the cigar as well.
posted by solar panels on 6-24-2009 at 2:34 am