The idea that the seeds of life may have originated on another planet is far from new, but is there any value to it?

Suppose humanity was faced with an extinction-level event. Not just high odds, but certain-sure. A nearby supernova will explode and irradiate all life, a black hole will engulf the Earth, a ...

Astronomer and director of the multidisciplinary Columbia Astrobiology Center at Columbia University, Caleb Scharf, spoke to us about a interesting idea that has plagued scientists for decades ...