As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

NASA’s search for life beyond Earth is no longer a distant dream but a coordinated campaign that now stretches from Martian ...

In 1957, a 300-foot craft landed quietly in Virginia. Out stepped a man in a metallic jumpsuit who simply said, “I need to see the president.” His name? Valiant Thor. He claimed to be from Venus—and ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.