Star in Leo shouldn't exist
September 3, 2011 9:34 PM Subscribe
ESO scientists have found
posted by Twang (79 comments total)
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an 'extremely primitive star' in the Milky Way's halo - 4/5 the size of the Sun, one of the oldest ever found - that theory says is impossible. It has fifty times less lithium in it than expected
in the material produced by the Big Bang.
Project supervisor Piercarlo Bonifacio: "It is a mystery how the lithium that formed just after the beginning of the Universe was destroyed in this star." Less than 1 part in a million in the 13 billion year-old star is not hydrogen or helium. It has 20 000 times less 'metals' than the Sun. Current theory says that stars can't form
in a region with so few 'metals'.
(SDSS J102915+172927. Nature abstract
Observations are the mutagens that cause theory to evolve - if they're right. All the birds in the sky are making this a great time for astronomy.