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

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

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

NASA has just made a groundbreaking discovery—a new planet beyond Neptune that wasn’t there before! This mysterious find ...

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

The agency announced on Monday afternoon (Feb. 10) that it has picked SpaceX to launch Pandora, a 716-pound (325-kilogram) ...

NASA's Pandora satellite mission to document at least 20 known planets orbiting distant stars will start from SpaceX at its ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

Astronomers at NASA have caught a glimpse of a star system whipping through space at an unprecedented speed. While the system ...

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