#Skyandtelescope

The Moon lights the way to Saturn, then befriends the Pleiades. The Ghost of Summer Suns arrives for Halloween. The Dipper lies low.

Take advantage of these moonless evenings! Make friends with far Cassiopeia clusters in the high-arching Milky Way. Soon the Moon will return.

New simulations suggest that the planets' orbits will destabilize well before the Sun expands into its red giant phase.

NASA announced three new scientific payloads that will head to the Moon to better understand lunar hazards and resources.

The Moon bugs out just in time to enjoy the peak of the Orionids, which trace their origin to Halley's Comet.

This curious cloud requires no solid particles to seed its formation — a theoretical phenomenon that's never been observed until now.

Hey diddle diddle, the Moon's in the Teapot. And up in the dawn, Mars jumps over Jupiter up high, while Regulus twinkles below.

The South American country, which hosts some of the world’s major astronomical observatories, promises to protect its night skies, from the Atacama Desert to Tierra del Fuego.

Planetesimal wrecks are raging around distant stars. With the Webb and Spitzer Space Telescopes, astronomers are learning what that looks like.

An ambitious mission will explore the moons of Mars, and bring back the first ever sample from Phobos.

The stars in our galaxy come in a beautiful assortment of colors. We see supergiants such as Betelgeuse that have a warm red glow, and others like Rigel that shine […]

Reanalysis shows that the Hubble Space Telescope's detection of water vapor escaping from Jupiter’s moon Europa might have been a glitch.

Rovers, drones, and landers will usher in a sustained lunar presence, under the new plan NASA announced this week.

A planetary odd couple — a mini-Neptune and a hot Jupiter — probably formed much farther away from their star before migrating closer in.

The Moon, Venus, and Jupiter — the brightest celestial objects after the Sun — form up beautifully in twilight May 18, May 19, and May 20.

Astronomers have identified the likely source of gas that flows into the maw of the Milky Way’s central black hole, Sagittarius A*.

An innovative new mission will probe the mystery of how the Earth’s magnetosphere interacts with the solar wind.

A new model explains how Ganymede got its molten core — which in turn has given Jupiter's largest moon its magnetic field.

New research suggests that Nereid, an unusual moon of Neptune, could be the sole survivor of the satellites that formed with the planet.

Venus and Jupiter draw closer in twilight, and this week they point to Mercury. The waxing Moon shows off rich telescopic detail.