Thursday 8 October 2015

planets and sciency stuff

Space is cool, really cool, and since watching The Martian, I've become interested in alien planets, and I've found some really weird ones. The picture above is a picture of a planet called TrES-2b, this planet is a gas planet 750 light years away that is officially the darkest planet in the universe. It's so dark because it's atmosphere reflects less than 1% of the light that enters it, and from what I understand, like the lunar eclipse a few weeks ago, only red light makes it through, so the planet glows a very dim red, which is creepy as hell, but crazy cool. Another planet doesn't make a lot of sense, Gliese 436 b is a planet that supposedly is covered in ice, but has a surface temperature of over 400 degrees, how's that for weird. Apparently the gravitational pressure on the planet is enough to stop the ice from evaporating, even at the crazy high temperatures. Gliese 1214 b is nicknamed the Waterworld, it's a planet with a surface that is completely covered in an ocean, and not just any ocean, but one that's hundreds of miles deep, take that Mariana trench. Still, this one in particular interests me because life on Earth started in the oceans, so what if maybe, just maybe, there's some form of aquatic life there. Finally we have another planet that may just support life, Gliese 581 c is about 20 light years away, and it's a planet that's tidally locked, meaning only one side of it ever faces the sun, so half of the planet is always on fire and the other half is always frozen, but in the middle there is a zone of permanent twilight that is more habitable, though life there would be extremely different, any plant life would need to use infrared light for photosynthesises. In 2008 a message was sent directly to Gliese 581 c in an attempt to contact alien life, the message will reach the planet in 2029. A bit hopeful don't you think. So there are 4 weird planets I've been reading about in the past week, it's fun, and there's science involved, which makes it even more fun.

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