Only Earth Is a Life Haven
June 23, 2016
Here are more discoveries that make it reasonable to think complex life is rare in the universe, and might be unique to Earth.
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More Challenges to Astrobiology
May 26, 2016
There aren't likely as many places to live outside of Earth as earlier hoped.
Earth Twin Still Missing in Exoplanet Trove
May 12, 2016
The Kepler spacecraft has found 2,325 exoplanets so far, but there's still no place like Earth.
There's No Place Like Earth
November 20, 2015
A survey of known exoplanets finds no real estate as valuable as Earth.
New Thoughts on Habitable Planets
October 9, 2015
Astrobiologists are trying to standardize the requirements for habitable planets. Do they get them all?
Do You Know How Lucky You Are to Live on Earth?
September 22, 2015
The factors that make life possible came together so beautifully, even materialists have trouble knowing why we're here.
Planets Defy Bottom-Up Assembly
August 15, 2015
As much as they want to imagine planets forming from dust, secular astronomers run into insurmountable difficulties.
You Wouldn't Want to Live on "Earth's Cousin"
July 24, 2015
Despite the hype about another Earth-like exoplanet, Kepler 452b would not be as habitable as Venus.
Desperately Seeking Life Beyond Earth
July 7, 2015
Earth life cannot be unique. How about you, Mars? Europa, anything? Enceladus? Comet 67P? Please break the silence!
SETI Believers Are Lost in Space
July 2, 2015
How long can you say "watch this space" till onlookers lose interest?
Star Trek for Real: Impenetrable Force Field Protects Earth
November 29, 2014
Radiation belts discovered at the dawn of the space age have a new trick in their pocket: shielding the Earth.
Saturn Rescues Earth: Outer Planet Wonders
November 22, 2014
How Saturn saved the Earth, and other news from the ringed planet, its family, and other bodies in the outer solar system.
Moon's Stabilizing Influence Depends on Star Size
October 15, 2014
A connection between multiple factors was noted in a recent model of how a moon helps a planet remain habitable.
Mars Radiation Fries Organic Compounds
September 5, 2014
Don't expect the "building blocks of life" to last very long on Mars.
Planet Rotation Limits Habitability
August 15, 2014
Life can't exist on a planet that rotates too fast or slow. This is another Goldilocks problem for astrobiologists to consider.