General relativity doesn’t just bend light, it can influence planetary orbits enough to wipe out entire systems.

Astronomers are closing in on what looks like a colossal missing piece of the Solar System, a giant planet that appears to ...

Astronomers have discovered a new exoplanet orbiting the nearby K-dwarf star HD 137010 after detecting a single, shallow ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

An exoplanet called HD 137010 b might be the closest thing astronomers have ever seen to “Earth 2.0.” The trouble is that ...

Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you ...

“This is the first planet candidate with Earth-like radius and orbital properties transiting a Sun-like star bright enough ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true moon.

Scientists have discovered over 6,000 planets that orbit stars other than our sun, known as exoplanets. More than half of ...

Some 350 light-years away, the V1298 Tau system features an infant sun-like star, just 23 million years old, orbited by four ...

NASA lost contact with its MAVEN Mars orbiter in early December and has been unable to reconnect with the vehicle. NASA plans ...