The Halloween 'dead comet' spooked the world with its abrupt appearance, why didn't we know about it earlier?
What's next for NASA's Dawn mission as it moves closer to the surface of dwarf planet Ceres? See some of its recent work in pictures.
What's with those asteroids that are streaming dust, just like a comet? One researcher explains how this could happen.
New lunar gravity maps point out a stark and unexpected difference between the sizes of ancient asteroids that slammed into the moon billions of years ago and the sizes of the rocky bodies that occupy the in the Main Asteroid Belt today.
Ethyl alcohol and a simple sugar found on the famous comet shed light on the cosmic origins of planets like Earth.
New maps of Ceres show the dwarf planet's mysterious bright spots and huge, pyramid-shaped mountain in a new light.
Newly found evidence suggests that two meteors smacked into Earth at the same time, about 458 million years ago.
Scientists are developing a novel space robot that can take up the challenge of hopping and rolling over microgravity terrain while doing valuable science.
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