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4 tiny, Earth-like planets found circling 2nd-closest star system to us — and could be visited by future human generations
At 5.97 light-years from Earth, it is the fourth-closest star to our solar system, after the three interconnected stars of ...
Space.com21d
'Primordial' helium from the birth of the solar system may be stuck in Earth's core
Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications for a long-standing debate about how ...