1–20 of 1,211 results
Galilaei crater May 20, 2024

Explore the Night with Bob King

Why Did Galileo Get Such a Puny Crater?

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.

Trumpler 22 star cluster

Southern Stargazing with Jonathan Nally

Explore the Star Clusters of Centaurus

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

Aurora prequel

Celestial News & Events

Severe Geogmagnetic Storm Has Arrived! Auroral Blast Expected Friday Night

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

bizarre loops of light created by black hole's gravity

Black Holes

Video: Plunge into a Black Hole

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

Comet C/2023 A3 early May

Explore the Night with Bob King

Comet Tsuchinshan-ATLAS Brightens, Grows a Tail

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

Why We Look Up with Jennifer Willis

The Broadest Horizon

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


Space Missions

China's Chang'e 6 Mission Heads to the Moon

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

Eta Aquariids from Australia

Explore the Night with Bob King

Ready the Hot Cocoa and Recliner — Here Comes the Eta Aquariid Meteor Shower!

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.

NGC 2547 open star cluster

Night Sky Sights

Sail into the Southern Skies with Vela

The large constellation Vela contains many hidden treasures.

ISS Eclipse

Astronomy in Space with David Dickinson

See Amazing Views of the April 8th Total Solar Eclipse from Space

Millions of viewers were wowed by last week’s total solar eclipse. Now, we get to see the eclipse from another angle: space.

Jupiter Uranus 12P comet

Explore the Night with Bob King

Jupiter Meets Uranus in Twilight; Supernova Erupts in Nearby Spiral Galaxy

Jupiter aligns with distant Uranus before it exits the evening sky as a bright supernova flares in the southern galaxy NGC 3621.

Solar eclipse

Why We Look Up with Jennifer Willis

Awe in the Shadow of a Partial Eclipse

A partial eclipse — Eclipse Lite, if you will — can also offer a sense of wonder, albeit on a smaller scale than totality.

Astronomy in Space with David Dickinson

An Early End for the Chandra X-Ray Observatory?

NASA budget constraints could wind down operations of the iconic Chandra X-Ray Observatory.

Little Rock, AR April 8 all-sky view

Explore the Night with Bob King

What Will We See in the Sky During Totality?

Most of our time will be focused on Sun during the minutes of totality on April 8th, but consider tearing yourself away for a few seconds to put it all in context.

orange ring of light with swirling lines

The Black Hole Files with Camille Carlisle

Strong Magnetic Fields Swirl Near Milky Way’s Black Hole

Astronomers have detected twisted, orderly magnetic fields near the event horizon of Sagittarius A*.

Southern Cross, False Cross, Diamond Cross

Southern Stargazing with Jonathan Nally

The Stars of the Carina Constellation

Get to know the stars of Carina constellation — and learn how to spot the False Cross instead of being fooled by it!

Betelgeuse close-up

Explore the Night with Bob King

Is Betelgeuse Fading Again?

Betelgeuse has dipped nearly half a magnitude since late January. Could it be headed for another Great Dimming Event? We also take a look at this spring's "other" eclipse.

Peregrine Mission On

Why We Look Up with Jennifer Willis

Moonshots: The Successful Failure of Peregrine One

Space is hard, even when you don’t leave the ground.

Gegenschein and Milky Way

Explore the Night with Bob King

Fuzzy Glows: See Zodiacal Light, Gegenschein, Airglow, and Aurorae

Find time this season to set aside your telescope and seek the night sky's ghostly glows.


Space Missions

Odysseus Lander Is on the Moon

Odysseus has become the first mission of NASA's Commercial Lunar Payload Services program to soft-land on the Moon.

1 2 3 61