The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

Planets with suns like Wolf 359 are subject to huge blasts of radiation that raise questions about their long-term ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

From Earth, if the orbits line up just ... Trappist-1, a red dwarf star located 40 light-years from Earth, has seven Earth-sized planets that all transit the star from our point of view.

A Triple Star System Yields an Unusual Surviving Star Unlike our Sun, which exists alone, at least half of the stars in our ...

A close encounter with a mysterious interstellar object could explain the current orbits of several of Earth’s largest ...

Western graduate students win NASA Space Apps Challenge for their app that shows the orbits of near-Earth objects that could threaten space infrastructure.

A new study in astrophysics has found why some planets’ paths have certain peculiar features. The formation of the solar ...

Scientists have discovered a huge underground ocean that lies hundreds of miles below Earth's surface. This find could change ...

Scientists have long studied the life cycle of stars, and a recent discovery has shed light on the eventual demise of our Sun ...