An international team used 40 years' worth of data from two space probes to track down what they believe are signs of this ...

The Solar System consists of our star, the Sun, and everything bound to it by gravity; the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf planets like ...

Carbon-containing meteorites look like they had less severe impacts than those without carbon because the evidence was blasted into space by gases produced during the impact. The discovery not only ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

"This measurement of the planet population from planets somewhat larger than Earth all the way to the size of Jupiter and ...

Scientists know of over a dozen planets that orbit twin stars like the fictional "Star Wars" desert planet Tatooine. More ...

In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes at two suns setting above the ...

Astronomers have found thousands of exoplanets — worlds beyond our solar system. Most of them are in single-star systems, ...

"Polar orbit" means that instead of orbiting in the same plane as where the two stellar objects are located, the planet’s ...

Astronomers have detected methane in the nearest known T dwarf, offering new insight ... the innermost planet in the TRAPPIST-1 system, might have a carbon dioxide-rich atmosphere.