Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

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

Six planets are part of the alignment, which will last until Feb. 18. Mercury will join the alignment later in the month.

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

Around the time of your romantic dinner, head outside and look to the southwest to spot the super brilliant planet in the night sky ...

The space rock is heading in our direction at some 18,700 miles per hour, according to the space agency's data.

Multiple planets will appear to be aligned in the night sky in a parade of planets throughout February, astronomers say, an ...

Forget roses and chocolates-instead, feast your eyes on a celestial show and take in the beauty of the cosmos. This […] ...