Could a star shift and replace our sun?
Wouldn't it be cool if our sun could divide itself- we would have two suns! (If there were somehow suns on either side of the Earth, the time difference might change!!!)
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- Anshula Gandhi
- I love to write books and poetry! I am always very curious, and always up for a challenge! I hope that my writing will make you think differently for a while, or mabye even just keep you from getting too bored! Please leave comments! - - 2008- -
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From http://www.nytimes.com/2008/03/11/science/space/11earth.html?ex=1362888000&en=376e51314eacb5c4&ei=5088&partner=rssnyt&emc=rss
If nature is left to its own devices, about 7.59 billion years from now Earth will be dragged from its orbit by an engorged red Sun and spiral to a rapid vaporous death. [...]
Earth’s basic problem is that the Sun will gradually get larger and more luminous as it goes through life, according to widely held theories of stellar evolution. In its first 4.5 billion years, according to the models, the Sun has already grown about 40 percent brighter.
Over the coming eons, life on Earth will become muggier and more uncomfortable and finally impossible.
“Even if the Earth were to marginally escape being engulfed,” said Mario Livio, an astronomer at the Space Telescope Science Institute, “it would still be scorched, and life on Earth would be destroyed.”
About a billion years from now, the Sun will be 10 percent brighter. Oceans on Earth will boil away. The Sun will run out of hydrogen fuel in its core about 5.5 billion years from now and start burning hydrogen in the surrounding layers.
Go http://www.nytimes.com/2008/03/11/science/space/11earth.html?ex=1362888000&en=376e51314eacb5c4&ei=5088&partner=rssnyt&emc=rss
for the latest word on the fate of earth.
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