The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

"With an orbital period of 570 days, it is a relatively cold gas giant planet," said Guðmundur Stefánsson of the University of Amsterdam in a statement. This orbital period places it a little closer ...

Certain extreme planets are called ultra-short period objects if they're very close to their stars and orbit them in mere hours, like K2-22b.

February brings a rare planetary parade, with five bright planets in clear view and a special alignment of Mercury and Saturn on Feb. 24. Throughout February, a striking gathering of the five ...

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

XRP’s price action is drawing market attention as it moves within a bullish pennant flag—a pattern often signaling the continuation of a strong rally. The setup hints at a likely magnified breakout, ...

Credit: ISRO WASHINGTON — A recently launched Indian navigation satellite is stranded in a transfer orbit after the failure of its onboard propulsion system and could soon renter. The Indian ...

These planets are Jupiter, Saturn, Uranus, Neptune and Pluto. Because of their distance from the Sun, their orbits are lengthy. For example, it takes Jupiter 12 earth years to orbit the Sun ...

Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our ...

W.M. Keck Observatory imagery of star system HR 8799 have been time-lapsed. The system hosts four planets that are more ...