So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

NASA’s Hubble Space Telescope has captured infant planets colliding around Fomalhaut, one of the brightest stars in the night ...

Jupiter, as always, is a dazzling object, shining among the stars of Gemini the Twins. It reaches opposition on Jan. 10; this ...

Venus reaches greatest brilliancy in the evening sky on Sept. 19 and in the morning sky on Nov. 29. In late September through ...

An exosyzygy – an alignment of three celestial objects around another star – is predicted to happen later this year, but it ...

Two separate research teams have observed a previously unseen microlensing event, confirming the existence of a particular ...

For centuries since the Sun was declared the center of the solar system in the 16th century, society held the belief that any ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

New research explains how dust links the formation, evolution, and fate of stars and planets, and why future telescopes are needed to observe these processes in detail ...