earth4 小时
Wobbling stars reveal giant companions
Data from the Gaia spacecraft shows that even unassuming stars can host monumental companions like massive planets.
Are we alone? Research suggests intelligent aliens may exist—perhaps even in our own galaxy
The search for life beyond Earth is accelerating, with new telescopes, spacecraft, and missions exploring the universe for ...
Are we not alone? Research suggests intelligent aliens may exist — perhaps even in our ...
The search for life beyond Earth is accelerating, with new telescopes, spacecraft, and missions exploring the universe for ...