A “cold Neptune” and two potentially habitable worlds are part of a cache of five newly discovered exoplanets and eight exoplanet candidates found orbiting nearby red dwarf stars, which are reported ...

For a decade and a half, astronomers have been on the trail of a galactic mystery. In 2011, a project that surveyed the Milky Way galaxy for exoplanets — which are planets beyond our solar system — ...

A Neptune-sized planet closely orbiting its host star has just been discovered, making it only the fourth object of its kind ever identified. Scientists detected the planet, designated TOI-3261 b, ...

A four-planet system observed several years ago by the Kepler spacecraft is actually a rarity: Its planets, all miniature Neptunes nestled close to the star, are orbiting in a unique resonance that ...

A leading scientist has told Newsweek about new evidence supporting the existence of a secret ninth planet lurking at the edge of our solar system. This hypothetical extra planet, often referred to as ...

(CNN) — Astronomers have discovered three previously unknown moons around Uranus and Neptune, the most distant planets in our solar system. CNN — (CNN) — Astronomers have discovered three previously ...

A super-Neptune orbiting a star is zipping through space at 1.2 million miles per hour—or potentially faster. Reading time 3 minutes A small star and its orbiting planet are flying through the Milky ...

The International Astronomical Union’s Minor Planet Center announced the discovery of three new moons on February 23, with one orbiting Uranus and two orbiting Neptune, increasing their known moon ...

Just 12 miles across, the little moon was discovered in photos taken by the Hubble Space Telescope. When scientists recently rejected Vulcan as... Astronomers have found a new moon orbiting the solar ...

How fast can solar systems orbit our Milky Way Galaxy? This is what a recent study published in The Astronomical Journal hopes to address as an international team of researchers confirmed the ...

Imagine predicting an entire planet's existence with nothing but math, and then finding it right where the numbers ...