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“Solar System”

May 23, 2016 05:39 PM ET // Ian O'Neill
While coasting through the outer solar system, NASA's New Horizons is busying itself with astronomical observations of a distant Kuiper Belt Object.
May 19, 2016 02:35 PM ET // Ian O'Neill
As we approach the closest opposition with Mars in 10 years, Hubble took the opportunity to photograph the Red Planet's sun-lit hemisphere.
May 19, 2016 07:34 AM ET
With so much space in outer space, it's tempting to think there's a whole lot of nothing between the big objects. But a closer look finds more than just dust in those voids.
May 19, 2016 12:23 PM ET // Irene Klotz
The gas giant is known to be the target of some massive chunks of space debris, but now astronomers have a pretty good idea about how many big impacts can be seen from Earth.
May 18, 2016 08:38 PM ET // Irene Klotz
A nearby star system has been discovered sporting its own Kuiper belt -- a region populated with ancient icy comets and asteroids.
May 14, 2016 05:54 PM ET // Ian O'Neill
Comet 252P/LINEAR buzzed Earth during one of the closest recorded cometary encounters with our planet and Hubble locked onto the icy vagabond as it ran away into the night, imaging its rotating tail.
May 12, 2016 08:33 AM ET // Elizabeth Howell, Space.com
A small water jet on the icy moon spews its fiercest eruptions when the moon is farthest from the planet, but overall gas output hardly increases.
May 3, 2016 11:07 PM ET // Ian O'Neill
Mark your calendars: The smallest planet in the solar system is about to make a REALLY big entrance.
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