1–20 of 2,226 results
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

Celestial News & Events

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.

This Week's Sky At a Glance

This Week's Sky at a Glance, March 8 – 17

The Moon sidles up to bold Jupiter, then the delicate Pleiades, then the Castor and Pollux twins. Arcturus, ascending in the east, is probably the third-brightest star you've ever seen and that's including the Sun.

totality with an iPhone13

Astrophotography: Tips & Techniques

Como Fotografiar el Eclipse Con un Smartphone

Antes de intentar fotografiar el eclipse con su smartphone, lea el consejo de estos expertos.

Solar eclipse series

Observar el Cielo

Qué Buscar y Cuándo Durante un Eclipse Solar Total

Los fenómenos astronómicos y terrestres que no se debe perder durante el eclipse solar total del 8 de abril de 2024.

Yellow star amidst black starfield

Night Sky Sights

Meet Wezen, a Yellow Tail for a Big Dog

Wezen, a yellow supergiant more than 1,600 light-years from Earth, is also the tail of the Canis Major constellation.

Moon, Antares, Scorpius ay dawn, March 2-4, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, March 1 – 9

It's early March, so the Winter Triangle balances on Sirius after dark. The Gemini twins float high across the meridian. Leo jumps the gun on spring.

Sunset at equinoxes and solstices

Sky Tour Astronomy Podcast

March Podcast: A Barely-There Lunar Eclipse

As told in the latest episode of our long-running Sky Tour astronomy podcast, this month it’ll be challenging to a special kind of lunar eclipse on March 25th — but easy to spot five of the 10 brightest stars in the night sky.

View of eclipse above an observatory

Celestial Objects to Observe

How Dark Does It Get During a Total Solar Eclipse?

Totality may not be quite as dark as nighttime, but the difference between 99% obscuration and 100% is still night and day.

Eclipse sundial

Celestial Objects to Observe

DIY Project: Make an Eclipse Sundial

Try this solar-eclipse experiment as you're watching the Moon cover up the Sun.

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.

Moon with Regulus and Algieba, Feb. 23, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, February 23 – March 3

The full Moon splits the Sickle, the dawn Moon occults Antares, carnivore constellations stand up in the east, and the zodiacal light is at its evening best.

Night Sky Sights

Astronomy for "Cloudy, Cloudy Nights"

If you have clouds in your forecast, don't give up! There’s plenty of astronomy to be enjoyed even on overcast nights.

Moon passing Pleiades and Aldebaran, Feb. 16-17, 2024

Celestial News & Events

This Week's Sky at a Glance, February 16 – 25

The Moon waxes from first quarter to full this week, traveling from the Pleiades past the not-quite-twin heads of Gemini to the Sickle of Leo. The Big Dipper and Cassiopeia stand in balance. Venus meets Mars low in the dawn.

Night Sky Sights

Get to Know the Carina Constellation

The southern constellation Carina contains arguably the best nebula in the sky, along with a host of other fascinating stars and clusters.

Triple stars finders

Explore the Night with Bob King

Winter's Finest Triple Stars

Double stars are wonderful, but triples are terrific! Here are 16 trios to enjoy the next clear night.

Moon passing Pleiades and Aldebaran, Feb. 16-17, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, February 9 – 17

The first-quarter Moon passes the Pleiades, then Aldebaran. Cassiopeia stands on end. For the southern U.S., Canopus culminates far under Sirius.

Waning Moon passing through Scorpius, Feb. 4-6, 2024

Celestial News & Events

This Week's Sky at a Glance, February 2 – 11

Under Orion is the Hare, which you may know, and under the Hare is the Dove, which you may not. February the best month for both.

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