Space News & Blog Articles

An alien comet will soon depart from the Sun's glare and enter the morning sky. Get ready for the observing opportunity of a lifetime.

Two recent discoveries of black hole mergers add to the evidence that such mergers happen over and over again.

Astronomers have discovered a ready-to-image super-Earth candidate less than 20 light-years away.

The merged remnants of stellar pairs may orbit the Milky Way’s central, supermassive black hole.

The crescent Moon returns and waxes to first quarter. Two binocular comets are on the way out. And Arcturus is once again the Ghost of Summer Suns.

The discovery of a new array of molecules spouted from Enceladus indicates new promise for habitability within Saturn's frozen-over ocean.

Astronomers have discovered a second asteroid in the inner solar system, circling the Sun almost entirely within the orbit of Venus.

In a surprise to researchers, the small, icy bodies beyond Pluto's orbit tend to rotate opposite the way they move around the Sun, which might say something about how they formed.

The longest-duration burst of gamma rays on record might mark the moment a black hole tunneled through a star and blew it up from within.

After checking out the two binocular comets right after dark this week, catch a double shadow transit on Jupiter and the late-night Orionid meteors.

Circumstances are ideal for watching debris from Halley's Comet set the morning sky ablaze.

Sky & Telescope’s 2025 “Galileo’s Italy” tour offered much more than sightseeing, as participants enjoyed multiple opportunities to stand on astronomical hallowed ground.

Precise measurements of stars’ motions show that a wave is propagating outward from our galaxy’s center — perhaps from a long-ago collision with another galaxy.

Never caught a double shadow transit on Jupiter? This week offers several chances. Meanwhile, Cassiopeia stands high and the Little Dipper leans over.

Astrophysicist Mansi Manoj Kasliwal, whose work has been key to understanding the changing infrared sky, is guiding Palomar Observatory into its next chapter.

Astronomers discovered a small, free-floating object that’s accreting matter at a breakneck pace, suggesting that some planet-size worlds could form similar to stars.

The experience of truly dark skies is one that no one should miss.

While civil servants are furloughed or working without pay, funding for NASA remains uncertain.

It's Harvest Moon week, when the Moon shines low and bright at nightfall for many days running. Along the way it passes edge-on Saturn.

Spacecraft orbiting the Red Planet will aim a suite of instruments at Comet 3I/ATLAS to capture details about this enigmatic object.

After a dearth of bright comets earlier this year, we look forward to an exciting month ahead.