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.
The spooky 'Halloween Comet' of 2015 got its close-up radar snap-shot and astronomers now hope to figure out whether or not is is a dead comet.
Asteroid 2015 TB145 passed by Earth at a range of just over 300,000 miles, placing it just outside the orbit of the moon.
Ethyl alcohol and a simple sugar found on the famous comet shed light on the cosmic origins of planets like Earth.
The orbit of the roughly 1,300-foot-wide object suggests it could be a comet.
An eccentric asteroid is expected to whiz close to Earth on Halloween.
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