Feature Stories

The inner edge of a star's habitable zone may be much closer to the star than previously thought.

A robot that can scale the faces of steep cliffs might one day help explore Mars and find signs of life.

A new experiment to study life’s potential on Mars has been successfully delivered to the International Space Station.

To learn more about hazy exoplanet atmospheres, scientists simulated a transit of Saturn's moon Titan across the face of our own sun.

Better Markers of Life on the Horizon.

Astrobiologists have outlined how geochemistry and metabolism are connected in the microbial ecosystem of the deep subsurface beneath Spain’s Rio Tinto region.

Because we live on the planet Earth, it's sometimes hard to gain some perspective about the visibility of life outside of our planet. An extraterrestrial spacecraft lurking in a satellite's orbit near Earth would be able to see city lights and pollution in our atmosphere.

Humanity has plans to expand into space: to the Moon, to Near Earth Asteroids (NEAs), and to the moons of Mars. Like any trip to anywhere, we need to know certain things before we go.

Humanity has plans to expand into space: to the Moon, to Near Earth Asteroids (NEAs), and to the moons of Mars. Like any trip to anywhere, we need to know certain things before we go.

NASA's new planet-cataloging mission is expected to detect more than 200 planets the size of Earths and super-Earths.