Long Trip

Earth Life Began on Mars

If this study’s right, you’re a Martian: it shows that chemical elements involved in the early formations of life were available on Mars long before Earth, and were possibly brought to our planet by a meteorite. Three billion years ago the Earth was covered with water, and didn’t have enough oxygen to form molybdenum. “It’s yet another piece of evidence which makes it more likely life came to Earth on a Martian meteorite, rather than starting on this planet,” said Florida biochemist Steve Benner, who is presenting the finding at a conference in Florence, Italy.