Your comments and letters on the May 27, 2017, issue of Science News
Mars may have formed out where the asteroid belt is now, far from its planetary neighbors, Thomas Sumner reported in “New proposal reimagines Mars’ origin” (SN: 5/27/17, p. 14).
Readers online were fascinated by Mars’ origin story. “There seemed to be evidence of actual seas on early Mars,” stargene wrote. “How can this be finessed into the idea of Mars living out in the freezing asteroid belt?”
“The evidence for early oceans on Mars is controversial, and this question hits on a pretty fundamental issue,” says Science News astronomy writer Lisa Grossman