If the origin of life is at all common, scientists may soon be finding lots of life-bearing worlds.
Earth, with its habitable conditions, may be incredibly rare.
Astronomers are learning more about the brightening and dimming of stars.
Scientists discover that Earth was hit by two meteorites at the same time, ten miles apart.
Though unremarkable in size, the asteroid Vesta has an inner glow sure to catch your eye.
The man in the moon's face was actively formed by hot lava and other geological forces.
Most of the moon's craters were formed by asteroid crash landings millions or billions of years ago, but more recent collisions are also making their mark.
Falling sky debris doesn't pose any real threat. But in the nuclear age, asteroids could trigger war sirens.
*Beware of alarmist headlines. The odds are slim when it comes to giant Earth-bound asteroids.
The secret to the origins of life on Earth could be in the dust that's leftover after solar systems form.