Asteroids, comets, and meteors are all small solar system objects, but they differ in composition and behaviour.

Potentially dangerous comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, ...

Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

Magnetism itself may have given our solar system the architecture needed for habitability. A team at the University of Oxford ...

Comets — those small, icy objects orbiting the sun — act like floating time capsules, offering a window into the early days ...

Adam Carlson caught a fine photo of October’s comet, the Tsuchinshan-Atlas, named for the Chinese and South African observatories that first spotted it.

I enjoy marking day’s end, beginning of nighttime, with a glance to the dazzling white Evening Star low in the ...

Philae's historic landing on Comet 67P in 2014 provided crucial data on the comet's surface and internal composition, despite technical setbacks. The mission revealed organic molecules and temperature ...

Pluto and other large bodies in the Kuiper Belt are surprisingly rich in rock rather than ice. It may be because the early ...