The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a flyby on Wednesday.

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth.

The objects around the ringed planet are tiny, but some of them may have formed relatively recently in the solar system’s ...

After 17 years of observation, researchers are certain that what they thought was a group of two celestial bodies is actually ...

Sedona Red Rock News Managing Editor and Sedona Poetry Slam founder Christopher Fox Graham has become the second Sedona resident to have a celestial body named after him with the recent redesignation ...

That's according to a new study published Thursday in Science, which analyzed how subtle shifts in Earth's orbit around the Sun have historically triggered massive climate changes.

A pilot flying American Airlines Flight 2246 was preparing to land Tuesday at Ronald Reagan National Airport when air traffic control instructed the flight to “go around” to avoid getting too ...

nearly round shape, and has cleared the neighborhood around its orbit." Pluto is automatically disqualified ... has nicknamed Xena. Charon, the largest of Pluto's three moons, is no longer under ...

He had three years left on his deal with Houston. Stories by Terry Pluto Will Myles Garrett’s trade request discourage free agents from signing with the Browns? Cavs’ playoff rotation ...

This process involves two icy bodies briefly merging and then separating, leaving Charon in a stable orbit around Pluto. Unlike traditional collision models, this event challenges previous theor ...