They say everything’s sweeter the second time around, and that seems to be the case for SpaceX’s plans to colonize Mars. Last year, Musk unveiled his plans to colonize the Red Planet and make it fit for human habitation. Now, that version of the plan has been published and made available for free—with a few notable updates.
New research has offered evidence to support the theory that our sun was born with a non-identical twin named “Nemesis” and some astronomers are blaming it for the death of the dinosaurs. Scientists have long noted, and sought to explain, the phenomenon of stars having companions. Now a new analysis by scientists from Harvard and UC Berkeley suggests that nearly all stars are born with a twin.