Scientists were able to see the moment when planets began to form around a star. Astronomers have witnessed the birth of a solar system beyond our own for the first time. An international team of ...
Gadget Review on MSN
Nemesis: The Theoretical ‘Death Star' That Could Explain Earth's Mass Extinctions
Nemesis theory suggests a hidden brown dwarf companion star triggers mass extinctions every 26 million years, but advanced surveys find no evidence.
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