Caleb Scharf is an astronomer and director at the Columbia Astrobiology Center at Columbia University.
Scharf studies panspermia and believes that early life could have been transported from Mars to Earth through collisions of asteroid.
According to Scharf, "panspermia is about the exchange of living things across the universe, and in particular, our solar system." The early chemistry of Mars is very different from how it is today, some scientists believe that it might have been a good place for life to start.
Check out the video on Business Insider for a further explanation.
There's a radical theory that life on Earth came from Mars https://t.co/ZDIXMpqBdk
Cue the David Bowie "Life On Mars."
Mary Brooke Beasley has a healthy obsession with all things related to cats, fashion, and the color pink! She mainly writes trending topics, celebrity gossip, and lifestyle pieces.