Nightly Snow Storms on Mars
It may not be important for Martian life, but it makes us wonder.
What Would It Take to Wipe Out All Life on Earth?
Hard to say, but a recent study paints too happy a picture.
Cracking an Alien’s Genetic Code
Detecting DNA—or its extraterrestrial equivalent—may be critical technology for future missions to Mars and the moons of the outer Solar System.
The Search for Extraterrestrial Artifacts
SETI research is picking up on the other side of the Atlantic.
A Toxic Cocktail on the Surface of Mars
New experiments on Earth may affect how we search for life on the Red Planet.
Most Mass Extinctions Have Been Due to Global Warming
Might the next one be caused by humans rather than volcanoes?
The Wow! Controversy and Decoding Alien Messages
Would you be able to decipher an extraterrestrial broadcast?
Forty Years Later, SETI’s Famous Wow! Signal May Have an Explanation
But the controversy continues.
Martian Rain
And what it tells us about the atmospheric pressure on early Mars.
Wandering Moons Could Make Good Abodes for Life
The bigger the exo-moon, the longer it’s likely to be habitable.
Iceland on Mars?
Scientists find evidence of fire and ice in a Martian impact basin.
Hydrogen on Enceladus: Interesting, But Not Conclusive for Life
Vents below the icy moon’s surface may power a biosphere, although there are other possibilities, too.
After the Asteroid Impact
Following the mass extinction 66 million years ago, life bounced back faster than expected.
Want To Make Mars Livable? Bring Back Its Magnetic Field
A novel way to terraform the Red Planet.
The Ultimate Space Telescope Would Use the Sun as a Gravitational Lens
An old idea gets new attention.
A Vision for Planetary Science in 2050
We need to dream, and to boldly go where no one has gone before.
Could Alien Life Be Hidden All Around Us?
Thoughts about dark matter biology and a shadow biosphere.
When it Comes to New Planets, Expect the Unexpected
Unfortunately, the TRAPPIST-1 planets are not the likeliest places to search for life.
Ceres Just Got A Lot More Interesting to Astrobiologists
Indigenous organics have been found on the largest body in the asteroid belt.
A New Lander Concept for Europa
Life detection would be a key part of a mission to Jupiter’s intriguing icy moon.
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