Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...

A distant star dimmed by 97% for nearly 200 days. Astronomers say giant rings around a brown dwarf or super-Jupiter may explain it.

NASA describes deep hydrogen compression that eventually forms conductive metallic liquid, making Jupiter feel less like Earth and more like a continuous gradient of states. That alone breaks the old ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

Astronomers have reported one of the longest stellar dimming events ever recorded, with a Sun-like star fading by 97 percent for nearly 200 days. Astronomers believe one of the longest stellar dimming ...

Jupiter, the largest planet in our Solar System, has just gotten a bit smaller, at least according to the latest data. New ...

Explore a hidden Atlanta gem where you can see a real Apollo spacecraft and enjoy an immersive planetarium experience, all without spending a dime ...

The Science: Europa has been considered as a top contender for alien life for even longer than Enceladus, thanks to its massive under-ice liquid water oceans. It also displays water vapor plumes ...

According to the new data, Jupiter's radius measures 71,488 kilometers (44,421 miles) at its equator, and the planet rises 66,842 kilometers from its center to its north pole. That makes it 4 ...

The balloon-based EXCITE mission measures infrared phase curves of hot Jupiter exoplanets to map temperature and atmospheric composition from long-duration Antarctic flights.

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS ...

41P/Tuttle-Giacobini-Kresak is now known to be in the Jupiter family of comets, going from a little inside Jupiter's orbit to almost as far as Earth on its 5.4-year orbit. It is notable for its large ...