Called Kepler-51, the Sun-like yellow dwarf star was found in 2012 to have three exoplanets in its orbit; each, it would turn ...

Earth's mesmerizing northern and southern lights — the auroras — have captivated humans for millennia. But our planet isn't ...

When you look up in the night sky, our moon is unmissable.Just like Earth, it's round and has a solid, rocky surface. But is ...

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

Anyone tempted to ascribe the nighttime sightings of aircraft to alien intelligence ought to be dissuaded by the vast scale ...

The Parker Solar Probe will zoom by the sun on Tuesday during a record-breaking flyby, coming within 3.8 million miles (6.1 ...

The Parker Solar Probe will swoop just 6.1 million kilometers above the sun’s surface on Christmas Eve. Scientists are ...

In recent years, Saturn has overtaken Jupiter as the planet with the most satellites in our solar system. How many moons does ...

The moon may be more than 100 million years older than some scientists previously thought, according to a new study.

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form.

International researchers recently spotted a pair of stars orbiting around one another in surprisingly close proximity to Sagittarius A*.

The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, ...