"With an orbital period of 570 days, it is a relatively cold gas giant planet," said Guðmundur Stefánsson of the University ...

Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Data from the Gaia spacecraft shows that even unassuming stars can host monumental companions like massive planets.

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

Researchers are unlocking secrets of our solar system by analyzing asteroid Bennu samples, some of the most pristine ever collected. These fragments date back 4.5 billion years and contain salts, ...

SETI normally listens for extraterrestrial signals. A SETI team has switched roles and considered where aliens can hear us ...

Since its launch in 2013, Gaia has been dedicated to creating an accurate three-dimensional map of the Milky Way. Using two high-precision optical telescopes, the spacecraft carefully records the ...

Season 5 of "The Boys" has been officially approved ... Sister Sage (the smartest person on the planet) and a cabal of politicians are planning a coup to overthrow the U.S. government.

The Dwarf 3 is great for astrophotography beginners, but it also has lots of useful tools for more experienced hobbyists.