The panspermia theory may sound farfetched by comparison: Alien microbes came from space and multiplied here on Earth. But, ...

When it comes to the essential building blocks of life, an interesting theory is doing the rounds. The panspermia hypothesis suggests that life's building blocks are widespread throughout the ...

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 ...