A Florida biochemist claims to have evidence that life began on Mars and eventually arrived on Earth by way of a meteor.
In his own words, that would mean that—yes—"we are actually all Martians." There is no easy way to break it to you. It is sort of like finding out that you're a wizard, but without the invitation to Hogwarts.
To prove this claim, BBC reports, Prof. Steven Benner is demonstrating "how the first molecules necessary for life were assembled." Apparently, the minerals needed to form RNA would not have been able to withstand Earth's bodies of water. Hence, Mars:
Scientists have long wondered how atoms first came together to make up the three crucial molecular components of living organisms: RNA, DNA and proteins. [ . . . ] RNA needs to be coaxed into shape by "templating" atoms at the crystalline surfaces of minerals.
The minerals most effective at templating RNA would have dissolved in the oceans of the early Earth, but would have been more abundant on Mars, according to Prof Benner.
Brenner, of The Westheimer Institute for Science and Technology in Florida, explained his theory this week at the Goldschmidt Meeting in Florence, Italy, an annual conference that does not typically draw international media attention.