21–40 of 2,262 results
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.

Moon, Capella, and Beta Tauri at dusk, May 10, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, May 10 – 19

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.

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.

Waning Moon passing Saturn and Mars in the dawn, May 4-5, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, May 3 – 12

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.

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.

Big Dipper and Ursa Major

Sky Tour Astronomy Podcast

May Podcast: Big Dipper Shows the Way

High above you on May evenings is an one obvious star pattern that just about everyone knows: the Big Dipper. This “Swiss Army Knife of the sky” can help you find many other key springtime stars and constellations. Just download or stream this month’s Sky Tour podcast.

Mars and Saturn low in the dawn around April 27, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, April 26 – May 5

All the planets now huddle around our line of sight toward the Sun. However, these moonless evenings present us the Spring Triangle, the Great Diamond with a sugar sprinkle on its edge, and the Pointers aligned vertically.

Moon meets Spica as Corvus watches, April 22, 2024

Celestial News & Events

This Week's Sky at a Glance, April 19 – 28

Springtime Leo walks high in the south, springtime Hydra snakes a quarter of the way around the celestial sphere, and the bright Moon aligns with Spica.

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.

Mars and Saturn very low in the dawn, April 13, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, April 12 – 21

Jupiter is easy to spot, shining low in the west at nightfall. Near it are Uranus and Comet Pons-Brooks, tougher catches that require binoculars or a wide-field telescope — and some finding skills.

Crescent Moon passing Jupiter and Pleiades at dusk, April 10-11, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, April 5 – 14

Venus and Jupiter may shine through the blue sky during the April 8th solar eclipse even if the eclipse for you is only deep partial. After dark, Orion walks down in the southwest.

Mars and Saturn April 2024

Sky Tour Astronomy Podcast

April Podcast: Planets in Transition

April’s evening skies offer plenty of stars to check out. However, aside from Jupiter low in the west, planets are in short supply. Our latest Sky Tour podcast helps you track down Mars, Saturn, and much during April’s pleasant nights.

Pleiades over Jupiter in twilight, April 5, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, March 29 – April 7

What? You say you're bored? The evening sky is moonless, the two Dog Stars align vertically, the Big Dipper dumps into the Little Dipper, and the Springs of the Gazelle cross the zenith.

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.


Partial: The Solar Eclipse for the Rest of Us

Whether the Sun will become a dented ball or an eerie crescent of fire, a celestial shadow show awaits you practically everywhere in North and Central America.

Jupiter and Mercury in evening twilight, late March 2024

Celestial News & Events

This Week's Sky at a Glance, March 22 – 31

The full Moon will go through a penumbral eclipse. Comet Pons-Brooks nears its best showing in early evening. And as Mercury fades in the sunset, Jupiter becomes the only easy planet in the entire sky.

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!

Moon crossing Gemini, March 17-19, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, March 15 – 24

Mercury emerges in the sunset, far lower right of brighter Jupiter. And don't just arc to Arcturus and speed to Spica — continue the curve to Corvus, cruise to Capella, and more.

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.

Diamond Ring

Celestial Objects to Observe

How to See the Diamond Ring Effect During a Total Solar Eclipse

Here's how to safely see the "diamond ring," the dazzling burst of sunlight seen just before and after totality.