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

Charon is the largest of the five known moons, or natural satellites, of the dwarf planet Pluto. With a diameter of 1,212 kilometres (slightly more than half the diameter of Pluto), Charon is the 12th ...

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

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

Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

Explore the impact of stellar flares on the potential for alien life. Discover how higher levels of UV radiation can both ...

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 ...

Bright yellow deposits in Consus Crater provide new evidence of Ceres' cryovolcanic history, reigniting the debate over ...

Telescopes don't come any smaller than the Dwarf 3, but does its portability come at the cost of image quality? Read the ...

the NEID (pronounced ‘nu-id') spectrograph on the WIYN 3.5-meter telescope at Kitt Peak National Observatory in Arizona, as well as the Habitable-zone Planet Finder on the 10-meter Hobby Eberly ...