Friday, March 12, 2010

There is a Comet Running into the Sun

Comets are large chunks of ice and rock floating around in space. When they get too close to the sun, they start vaporizing, literally, which is why they have giant, pretty tails. They orbit around the sun in gigantic, eccentric orbits. The earth too orbits around the sun, but its orbit is much less eccentric. Sometimes, however, various circumstances slow the comet down a bit, and it will make a final plunge into the sun. That looks like this:



That bright thing with the line is the planet Mercury. The long streak on the left is the comet.

You don't need to worry about the sun. It's a giant ball of plasma and fire that's been around for 4 billion years and has had plenty of comets--and probably at least one or two earth-sized objects as well as many, many others--smash into it in that time. Now, the comet, on the other hand... heh. At the least, I can assure you that comet will never harm the earth or anything else, ever.

For now, you can read more about it here: http://www.spaceweather.com/

1 Comments:

Blogger 開心唷 said...

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Monday, March 15, 2010 2:56:00 AM  

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