Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Astronomers have long suspected that an enormous, unseen planet is hiding somewhere far beyond Neptune, quietly shaping the ...

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...

Only the three stars that make up the Alpha Centauri system lie closer to us. The planets newly discovered around Barnard’s ...

The detection of methane in the atmosphere of the dwarf planet has further made its classification as T-type instead of L-type, which was earlier suggested in previous studies, the publication notes.

A 40-year-old space enigma has been unraveled: a white dwarf star at the center of the Helix Nebula has been annihilating a ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

No other known white dwarf binary has a larger combined mass ... times closer to each other than our solar system's innermost planet Mercury is to the sun, completing an orbit every roughly ...

To do it, he developed a model that simulated an Earth-like planet orbiting a white dwarf. He modeled the orbiting Earth-like planet as the habitable zone devolved, noting how much energy it ...