WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

The latest discoveries about Vesta challenge its traditional classification. This giant asteroid might actually be a remnant ...

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

Vesta might be a shattered remnant of an early planet, not a failed one—forcing scientists to rethink how worlds begin.

At 300 light-years away, the interstellar cloud is the closest of its kind ever found to Earth and the largest apparent single structure in the sky.

They know that it is a sub-Neptune planet with a radius 2.35 times that of our planet, and so a volume 13 times that of Earth. It also has a mass 11 times our planet's, suggesting a lower density ...

Astronomers from the Massachusetts Institute of Technology (MIT) have made an unusual discovery, finding a planet which is in the process of disintegrating. And as it decays, it is leaving behind ...

While it can be relatively easy to locate worlds that orbit close to their star, planets with wider paths ... "The dominant theory of gas-giant formation is through runaway gas accretion, but ...

The planet had not been swallowed by a swelling red giant, as once thought. It had spiraled inward, drawn by the star’s own gravity, and plunged to its death. “The planet eventually started to ...

The giant false door, which is made of pink granite, is about 14.8 feet (4.5 meters) high and 3.8 feet (1.2 m) wide, the Egyptian Ministry of Tourism and Antiquities said in a statement.In ancient ...

are planets with masses up to 10 times that of our planet, but still less than the masses of gas giant planets. The discovery came after a small extrasolar planet, or "exoplanet," in a wide orbit ...

and completed a flyby of the ringed giant on Sept. 1, 1979. NASA's Voyager 1 flew past Saturn in 1980 and, along with Voyager 2, which reached the planet in 1981, snapped nearly 16,000 images of ...