Hundreds of organisms, ranging from bacteria to lichens, can band together to create biological soil crusts in order to survive in tough conditions.
Getting a handle on what rocky worlds in our solar system would look like from afar will give us a basis for comparison as we seek out distant, habitable exoplanets.
Alien life could be orbiting rare F-type stars, despite heavy blasts of ultraviolet radiation. F-type stars are heftier and hotter than our sun.
A new study takes a deeper look into the fate of life-permitting water on Earth-like planets around red dwarf stars, the most common stars in the universe.
A recent study explores how atmospheric pressure on Earth-like worlds could impact their ability to support liquid water.
The Dawn spacecraft is visiting the asteroids Vesta and Ceres. Here are a few more of the most mysterious asteroids in our solar system.
The Apollo program was cut a few missions short. If it had continued, though, we can't help but wonder if we'd have a base on the moon today.
Saturn is one of the coolest planets in our solar system, so it's no wonder that its moons are equally compelling
One of the most well-known planets in the solar system is still hiding many mysteries of its formation and history.
Europa, Io, Callisto and Ganymede harbor some of the most mysterious environments in the solar system, from surprise magnetospheres to oozing molten cores.
Planets get all the attention, but asteroids are some of the most mysterious objects in our solar system.
Scientists still aren't sure how the moon came to be, but they believe it is one of the keys to life evolving on Earth.
What if dinosaurs and Neanderthals had not gone extinct? What if the sun was twice as large? How 10 key moments in history could change the present.