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Apr 25, 2016 11:32 AM ET // Elizabeth Howell
A bombardment of asteroids on a once-icy ancient Mars may have created vast oceans of liquid water, which persisted for 200 million years.
Apr 22, 2016 07:00 AM ET // Ian O'Neill
It may not be the biggest crater on dwarf planet Ceres' surface, but it's certainly one of the most compelling.
Mar 21, 2016 11:01 PM ET // Ian O'Neill
We are in the middle of a double comet encounter -- do astronomers view this unprecedented event as a worrying near-miss? Or is it an exciting opportunity to learn more about these mysterious icy objects?
Mar 10, 2016 11:32 AM ET // Elizabeth Howell,
Big fireballs occur about once every two to three years. But smaller meteors are much more frequent.
Mar 7, 2016 02:16 PM ET // Ian O'Neill
There's a mountain on dwarf planet Ceres, but scientists have no idea how it got there.
Feb 26, 2016 10:38 AM ET // Elizabeth Howell
While Earth can breathe easy for now, astronomers are on the lookout for a comet that may pose a threat to our planet in the distant future.
Feb 19, 2016 07:30 PM ET // Ian O'Neill
Leading up to the premiere of 'Telescope' on Discovery Channel this weekend, let's take a look at some of our favorite Hubble observations of the solar system.
Feb 19, 2016 11:33 AM ET // Elizabeth Howell
We know of only one asteroid with rings around it -- but there are likely many, many more.
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