There are extraterrestrials among us. They landed four billion years ago when Earth was just forming. And they weren't ...

Uncover the mind-blowing concept of panspermia—did life on Earth originate from outer space? Explore lithopanspermia's rock-hopping journey, radiopanspermia's interstellar dust ride, and ...

Kipping concludes his paper by noting that all his assumptions have been based on life getting its start directly on Earth, not via panspermia.