A glimpse into the evolution of proteins

(Phys.org) —ETH-Zurich researchers look several billion years back in time, when life on Earth was just beginning. In a laboratory experiment, they examined how a primitive protein was able to evolve. However, the journey ...

How did early primordial cells evolve?

Four billion years ago, soon after the planet cooled enough for life to begin, primordial cells may have replicated and divided without protein machinery or cell walls, relying instead on just a flimsy lipid membrane. New ...

NASA's Mars rover zeroes in on August landing (Update)

NASA's Mars rover, nicknamed Curiosity, is zeroing in on its August landing on the Red Planet and aims to touch down closer than expected to its mountain target, the US space agency said Monday.

Researchers catalog more than 635,000 Martian craters

It's no secret that Mars is a beaten and battered planet -- astronomers have been peering for centuries at the violent impact craters created by cosmic buckshot pounding its surface over billions of years. But just how beat ...

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