Complex processes that support all life have been serendipitously spotted with no cells needed, hinting that life could have started spontaneously in early oceans (newscientist.com)
From the Mars - size object that slammed into our planet 4.5 billion years ago, forming the moon, to a bombardment that boiled off early oceans as recently as 2.5 billion years ago, Earth has taken some massive stonings in its lifetime. (sciencemag.org)
«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. (sciencenews.org)