'On our way to Mars': NASA rover will look for signs of life

The biggest, most sophisticated Mars rover ever built—a car-size vehicle bristling with cameras, microphones, drills and lasers—blasted off for the red planet Thursday as part of an ambitious, long-range project to bring ...

A chemical clue to how life started on Earth

Earth didn't always harbor life. But around 4 billion years ago, something in the environment changed, and systems with biological properties began to emerge. Many scientists believe a lively dance of molecules called amino ...

How is a Kindle like a cuttlefish

(Phys.org)—Over millions of years, biological organisms – from the chameleon and cuttlefish to the octopus and squid – have developed color-changing abilities for adaptive concealment (e.g., camouflage) and communication ...

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