Sky & Telescope Magazine

Some massive stars may collapse completely into black holes — without the fanfare of a supernova.

The post Did This Black Hole Form Without a Supernova? appeared first on Sky & Telescope.

The Big Dipper twists around fast near the zenith, Arcturus almost claims the zenith, the Coma Star Cluster not far away can't quite hide, and T Cor Bor simmers ominously dim.

The post This Week's Sky at a Glance, May 24 – June 2 appeared first on Sky & Telescope.

A new JWST study has found evidence of two galaxies colliding 740 million years after the Big Bang.

The post Webb Telescope Finds Most Distant Black Hole Merger appeared first on Sky & Telescope.

Galileo was one of the first people to study the Moon through a telescope. You'd think he'd get more than 10-mile-wide crater for his efforts. But of course, there's more to the story.

The post Why Did Galileo Get Such a Puny Crater? appeared first on Sky & Telescope.

New research may have revived the mystery of 8 Ursae Minoris b, a seemingly doomed exoplanet that shouldn’t exist.

The post Astronomers Reopen the Mystery of a Planet That Shouldn’t Exist appeared first on Sky & Telescope.

This week the Moon occults Beta Virginis, then Antares. The last star of the Summer Triangle finally rises before bedtime. On the other side of the sky, the Arch of Spring sinks low.

The post This Week's Sky at a Glance, May 17 – 26 appeared first on Sky & Telescope.

This oddly shaped cloud of dusty gas is shaped by the winds and radiation from nearby stars.

The post Cosmic "Hand" Reaches for the Stars appeared first on Sky & Telescope.

A new planet candidate discovered in data from NASA's TESS mission could be an extreme lavaworld, pushed and pulled by the gravity of its own star and two other close-in planets.

The post Planet Candidate Could Be Incandescent with Lava Flows appeared first on Sky & Telescope.

This large constellation abounds in deep-sky delights, including many fine open star clusters.

The post Explore the Star Clusters of Centaurus appeared first on Sky & Telescope.

An extreme (G5) geomagnetic storm hit Earth last weekend, delighting viewers as far south as Florida with green and red curtains of light.

The post See Photos of the Widespread Aurorae Last Weekend appeared first on Sky & Telescope.

A severe geomagnetic storm has just hit Earth — which means we could see auroras tonight! Here's what you'll need to know.

The post Severe Geogmagnetic Storm Has Arrived! Auroral Blast Expected Friday Night appeared first on Sky & Telescope.

The waxing Moon this week travels eastward from the horns of Taurus past the heads of Gemini, the Beehive in Cancer, then the forefoot of Leo on its way to occulting Beta Virginis.

The post This Week's Sky at a Glance, May 10 – 19 appeared first on Sky & Telescope.

A new visualization from NASA takes the viewer on a one-way journey into a black hole.

The post Video: Plunge into a Black Hole appeared first on Sky & Telescope.

Are you excited about Comet Tsuchinshan-ATLAS's prospects for a bright appearance this autumn? Guess what? It's already gorgeous.

The post Comet Tsuchinshan-ATLAS Brightens, Grows a Tail appeared first on Sky & Telescope.

Is GRB 191019A a typical burst of gamma rays from a dying star, an anomalously long burst from colliding objects, or something else entirely?

The post Is This Gamma-Ray Burst a Shredded Star in Disguise? appeared first on Sky & Telescope.

Many people travel to broaden their horizons; there's no broader horizon than the cosmos.

The post The Broadest Horizon appeared first on Sky & Telescope.

This week in the moonless dark, the Summer Triangle appears over the eastern treetops star by star. Leo walks down toward the west. And the Sombrero Galaxy positions itself ideally on the south meridian for your telescope.

The post This Week's Sky at a Glance, May 3 – 12 appeared first on Sky & Telescope.

China’s ambitious Chang’e 6 mission will attempt to return a sample from the lunar farside.

The post China's Chang'e 6 Mission Heads to the Moon appeared first on Sky & Telescope.

Alkaid is the end star of the Big Dipper's handle, a bright-blue example of a nearby B-type star.

The post Meet Alkaid, the Big Dipper’s Handle appeared first on Sky & Telescope.

You might be tempted to sleep through this annual shower but then you'd miss seeing some of the fastest meteors around. Not to mention their parent is the most famous comet of all.

The post Ready the Hot Cocoa and Recliner — Here Comes the Eta Aquariid Meteor Shower! appeared first on Sky & Telescope.