Pluto: Another Abode for Life?
Icy worlds might be more habitable than previously thought.
On Mars, Organics Are Hard to Find
And now we know the reason why.
Claimed Signs of Life in a Martian Meteorite
Like other previous claims, this one may not hold up.
Astrobiologists In Search of a Breakthrough
Researchers consider the frontiers of life at an annual conference in Berkeley.
The Timing and Causes of Mass Extinctions
Could there be a human signal in the geological record?
Exposed on the Space Station
A test of how microbes survive in space
The Search for Extraterrestrial Intelligence Heats Up
Where do we stand, and what are the most promising leads?
Complex Life May Have Existed on Earth Much Earlier Than We Thought
Exciting new evidence from an ancient sea in Africa.
Hydrogen Peroxide, Bringer of Life?
This familiar household item may be more important than we thought.
An Ancient Rock From Earth—Found on the Moon
The puzzle over Apollo sample 14321
The Anthropocene Is Coming to Mars
Humans are about to extend their influence to a second world.
The Year of Astrobiology?
From Ultima Thule to life detection on Mars, biology moves to the forefront of space exploration.
It Came From the Heavens
New research supports the idea that life can spread from one world to another.
Were Muons to Blame for a Mass Extinction More Than Two Million Years Ago?
Supernova explosions could have far-reaching consequences for life on Earth, but probably not in this case.
Adopting a Non-Earthcentric View
One of many ways astrobiology progressed over the last decade
Moving Mars Exploration Forward
What exactly are we looking for as we plan future missions?
Where Did the Organic Matter on Mars Come From?
Biology may not be required to explain the chemicals we see in Martian rocks and meteorites.
Rising Oxygen Levels and What They Meant for Early Animal Life
The study of atmospheric gases may tell us which planets are best suited to advanced civilizations.
Speculations on a Neutron Star
Could life use other types of energy beside electromagnetic radiation?
Turn Up the Heat: Bacterial Spores Can Take Temperatures in the Hundreds of Degrees
New research makes panspermia—the spreading of life from one planet to another—more likely.
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