After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

On a small dwarf planet called Makemake, astronomers have seen signs of surprising temperature changes. These could indicate ...

Uranus, the seventh planet from the sun, holds some of the solar system’s most intriguing mysteries. Among its 28 known moons ...

A distant white dwarf hosts an Earth-like planet in an orbit that might be similar to Earth’s if it survives the Sun’s red giant phase.

Today: The two meteor showers centered in the constellation Taurus peak this week and next. That means there will be ...

Within GRAVITY’s combined observations, Xuan’s team discovered that Gliese 229 B was not a single object, but a pair of brown ...

Such is the case with this discovery: a very young planet orbiting very close to its star. Around a star only 2 million years old, astrophysicists were able to detect the presence of a newly formed ...