How Deep Must Life Hide to Be Safe on Europa?
Jupiter's icy moon Europa is subject to constant and significant blasts of radiation. Researchers at NASA's Jet Propulsion Laboratory are now attempting to determine how deep life must lay beneath the moon's crust in order to survive.

Raindrops in Rock
A new study published in Nature from NASA's Exobiology and Evoluationary Biology program investigators and their colleagues looks at fossilized raindrops and what they indicate about conditions on the early Earth.

Organics Probably Formed Easily in Early Solar System
Complex organic compounds, including many important to life on Earth, were readily produced under conditions that likely prevailed in the primordial solar system.

Is it Snowing Microbes on Enceladus?
March 27, 2012: There's a tiny moon orbiting beyond Saturn's rings that's full of promise, and maybe -- just maybe -- microbes.

Follow the Uranium
Researchers funded by NASA's Astrobiology Institute and Exobiology Program have developed a novel geochemical tool that compares the partitioning of uranium isotopes from seawater into carbonates.

Jupiter's "Grand Tack" Reshaped the Solar System
Jupiter, long settled in its position as the fifth planet from our sun, was a rolling stone in its youth.

Amino Acid Alphabet Soup
For more than 3 billion years, organisms on Earth have relied on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?

Out of Thin Martian Air
Mars has lost an ocean's worth of water, but to find where it all went will take satellites and computer models working in conjunction.

Software on the Fly
Much of the activity that enables the Pavilion Lake Research Project (PLRP) to explore remote lakes in British Columbia relies on a software system known as xGDS (Exploration Ground Data System).

NASA Research Shows DNA Building Blocks Can Be Made in Space
NASA-funded researchers have found more evidence meteorites can carry DNA components created in space.