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Forum » SpaceEngine » Science and Astronomy Discussions » Doomed Space Cloud Hints at Planet Formation in core. (The Milky Way's core that is.)
Doomed Space Cloud Hints at Planet Formation in core.
smjjamesDate: Thursday, 13.09.2012, 03:40 | Message # 1
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http://www.space.com/17545-s....ay.html

So, the term 'Core Worlds' would take on a literal meaning. I know that the article says that the galactic core is a pretty extreme environment due to the short lived stars that inhabit the area, but planets in the galactic core bring up some interesting prospects for life around such planets. Assuming it survives through supernovas which could sterilize a planet from light years away.

If life did manage to evolve there and stay alive, evolve multicellular organisms and even intelligent life, it would either have to be extremely hardy or extremely lucky in the environment of the galactic core.





 
SpaceEngineerDate: Thursday, 13.09.2012, 17:42 | Message # 2
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Galactic core has no short-living stars and supernovae. It is populated by yellow and red dwarfs. The main hazard for life there is a central super-massive black hole. If it's starting to eat a massive cloud of gas, the galaxy becomes a AGN (active galaxy nuclei) with tons of radiation emitted by a black hole's accretion disk, that might sterilize all life in the nuclei.

*





 
HarbingerDawnDate: Thursday, 13.09.2012, 18:00 | Message # 3
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Quote (SpaceEngineer)
Galactic core has no short-living stars and supernovae

Not true, there actually are some very young massive stars very close to the galactic center (less than 1 pc), so star formation really can happen there, though probably very rarely.

Quote (Wikipedia)
Although most of them are old red main-sequence stars, the Galactic Center is also rich in massive stars. More than 100 OB and Wolf–Rayet stars have been identified there so far. They seem to have all been formed in a single star formation event a few million years ago. The existence of these relatively young (though evolved) stars was a surprise to experts, who expected the tidal forces from the central black hole to prevent their formation.





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Edited by HarbingerDawn - Thursday, 13.09.2012, 18:00
 
Forum » SpaceEngine » Science and Astronomy Discussions » Doomed Space Cloud Hints at Planet Formation in core. (The Milky Way's core that is.)
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