From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

A strange world just 47 light-years from Earth is rewriting what scientists thought they knew about alien planets. Hidden ...

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 ...

A rare visitor from deep space has swept through the inner solar system, offering astronomers a fleeting look at material ...

Is NASA hiding the truth about 3I/ATLAS? Explore the 'cosmic rebel' defying physics and why legal experts say a lawsuit may ...