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

Scientists have been unable to determine whether the dwarf planet’s organics were produced by its own chemical processes or ...

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't ...

A recent multi-institutional study spearheaded by NASA has revealed the most volcanic place we know of. The planet, coined L ...

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.

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...

Using clever light-detecting techniques, ExTrA searches red dwarf stars for planets that might support life. By studying tiny ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

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

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 ...

The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.