101–120 of 2,233 results
Captured globulars

Explore the Night with Bob King

See Summer's Best “Gobbled” Globulars

Mergers between the Milky Way and long-ago dwarf galaxies have enriched our skies with dozens of iconic globular clusters. Many are visible in small telescopes.

Moon passing Spica, June 26-27, 2023

Celestial News & Events

This Week's Sky at a Glance, June 23 – July 3

Venus almost meets Mars in the western twilight, then runs away. Vega and Arcturus become equally balanced across the zenith. Down from Vega hangs the Summer Triangle.

Moon passing Venus, Mars, and Regulus, June 21-23, 2023

Celestial News & Events

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

Venus and Mars are getting closer together in the western dusk. And why does Mars always turn so puny when it approaches Venus? The "Betelgeuse of Summer" is up, and the Little Dipper stands on end.

Smoky sun

Celestial News & Events

Eking Out Observing from under Wildfire Smoke

Smoke from Canadian wildfires has made observing the night sky a challenge for many. Here are some ways you can make the best of a bad situation.

This Week's Sky At a Glance

This Week's Sky at a Glance, June 9 – 18

Now it's Venus's turn to pass the Beehive, with Leo looming over. The Summer Triangle lofts high. And the supernova in M101, near the Big Dipper, remains 11th magnitude.

Venus in line with Pollux and Castor, Mars nearby; June 2, 2023

This Week's Sky At a Glance

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

Venus shining in the dusk says goodbye to Pollux, hello to Mars. . . which is busy crossing the Beehive Cluster. Arcturus stands straight over Spica after dark, and Kochab stands straight over Polaris, it's that time of year.

Venus-Mars-Moon in June 2023

Sky Tour Astronomy Podcast

June: Solstice Nights & Summer Sights

June offers the shortest nights of the year for stargazers in the Northern Hemisphere. So count on our monthly Sky Tour podcast to help you get the most out your casual stargazing. It’s a fun and informative way to introduce yourself to the nighttime sky!

Venus lines up with Pollux and Castor, June 2, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, May 26 – June 4

Venus starts the week under Pollux and Castor, then lines up with them. Nearby, Mars steps on the Beehive. In the south the Bootes kite flies high.

Moon passing Venus, Mars, and Gemini at dusk, May 22-24, 2023

This Week's Sky At a Glance

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

As Venus and Mars move toward each other in the western dusk, Venus brightens and Mars shrinks — just like they always do. This week the waxing Moon hops over both.

Chromosphere plume relative to Earth

Stargazer's Corner: Adventures Under the Night Sky

Australia's Hybrid Solar Eclipse: Capturing the Chromosphere

A veteran eclipse-chaser found himself in a “hurry-up offense” on a tiny, uninhabited island during the April 2023 hybrid solar eclipse.

Venus and Mars in Gemini, May 15, 2023

Celestial News & Events

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

Mars and Venus each line up with a pair of stars this week. And with the Milky Way lying all around the horizon, the Coma Berenices Star Cluster floats overhead.

Coronal aurora blast

Night Sky Sights

Lie Back, Look Up, and Find Your Zenith Stars

When you want to relax under the stars there's no better way than on your back looking up at the zenith. We explore what's overhead and discover there's more than one zenith up there.

Moon passing under Saturn at dawn, May 12-14, 2023

Celestial News & Events

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

Big, macho Venus is closing in on wimpy little Mars in the western sky at dusk. Venus says hi to M35 on the way. In early dawn, the waning Moon guides the way to Saturn.

Venus and Mars in late May 2023

Sky Tour Astronomy Podcast

May: Leo is King in Late Spring

This month’s episode takes you on a guided tour of the key stars and planets that you’ll see on May evenings — a fun and informative way to introduce yourself to the nighttime sky!

Venus Orion Taurus in early May 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, April 28 – May 7

The Arch of Spring across the west enfolds Mars and Venus. Wintry Sirius nears its heliacal setting low in the southwest. The Summer Triangle stars come into view one by one in the east.

total eclipse april 2023 AlsonWong label

Astronomy & Observing News

Totality “Down Under”

When the Moon’s shadow swept across Earth on April 20th, tens of thousands traveled to Australia, Timor-Leste, and Indonesia to witness the celestial spectacle.

Moon passing Mars, Pollus and Castor, April 25-26, 2023

Celestial News & Events

This Week's Sky at a Glance, April 21 – 30

The Moon hops past Venus and then Mars. Hydra snakes up, the Pointers point down, and the Arch of Spring spans the west.

Waning Moon under Saturn at dawn, April 14-16, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, April 14 – 23

Venus shines with Aldebaran and the Pleiades in late twilight. After sunset on the 20th, try to spot your record-breaking thinnest young Moon. And Leo walks west with a mouse-galaxy dangling from his chin.

Astrophotography: Tips & Techniques

Eclipse Photographer’s Checklist

For those preparing to photograph a total solar eclipse, Fred Espenak shares his eclipse photography checklist.

totality with an iPhone13

Astrophotography: Tips & Techniques

How to Use Your Smartphone to Shoot a Solar Eclipse

Read this advice from expert eclipse-chasers before you use your smartphone to photograph a solar eclipse.