How unlikely was the moment when life first began on Earth? That remains one of the greatest mysteries about the origins of human existence. We still don't know how life arose, but it may well ...
“We can spend a couple weeks up here, and we start to forget about life on Earth,” he tells me. “First you forget the day of the week. Then you start forgetting to call your family.
Life may have emerged on Mars and Earth at the same time ... However, researchers did not know when water first appeared on Mars or how, after it had appeared, it might have created the conditions ...
As life evolved on Earth, it used and created minerals for exoskeletons and habitats. The hundred minerals present when life first formed have grown to about 5,000 today. For example, zircons are ...