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Waning Moon crossing Gemini, Aug. 5-6, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, July 30 – August 7

Saturn is at opposition this week, and Jupiter is soon to follow. Will your scope show the Seeliger effect of Saturn's opposition rings? Venus continues to haunt the low west in twilight. And in the south, Sagittarius starts nudging Scorpius aside.

Doubles map east

Explore the Night with Bob King

Dazzling Double Stars for Compromised Skies

For many, smoke from wildfires has transformed summer nights, blotting out stars and familiar deep-sky sights. But through it all double stars keep on shining.

Celestial News & Events

This Week's Sky at a Glance, July 23 – 31

Saturn and Jupiter shine in the southeast by late evening. The bright Moon passes them on the 24th through 26th. Venus continues to sit patiently, changelessly, low in the west in twilight. Bootes and the Big Dipper mark the western sky after dark; the Summer Triangle emblazons the east.

Deep Sky

Night at the (Celestial) Museum

Take some time to explore the overlooked masterpiece of Messier 56.

Venus, Regulus, Mars low in twilight, July 21, 2021

Celestial News & Events

This Week's Sky at a Glance, July 16 – 24

Venus shines in the western twilight as Mars sinks away. Jupiter and Saturn rise in late dusk. And after dark, Scorpius shows off at its very best in the south.

NGC 5453 globular cluster

Deep Sky

In Heaven with M7, a Portal Into the Deep

M7 in Scorpius is one of the brightest, most beautiful open clusters in the sky. It's also "home" to a half-dozen other delectable deep-sky sights.

The crescent Moon passes Venus and Mars in conjunction, July 11-12, 2021

Celestial News & Events

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

Bright Venus and tiny Mars come to conjunction low in the western twilight, as the crescent Moon stands watch. On the other side of the sky, Saturn and Jupiter rise after dark. And before moonlight comes back, delve the deep sky in Scorpius and Sagittarius.

Moon between Pleiades and Aldebaran, dawn July 6, 2021

Celestial News & Events

This Week's Sky at a Glance, July 2 – 10

Bright Venus and faint little Mars close in on each other low in the western twilight. Scorpius, laden with interesting stars and deep-sky targets, is highest in the south right after dark. Sagittarius, even richer, follows behind. Saturn and Jupiter rise in late evening.

blue noctilucent clouds hover over trees and a pink sunset

Explore the Night with Bob King

Noctilucent Cloud Show, a Mercurial Nova, and More

Summer only lasts so long. Like everything, it's transient. That will be our theme as we explore wispy noctilucent clouds, a nova that can't sit still, and a supernova in NGC 5427 in Virgo.

Moon-Venus-Mars in July 2021

Sky Tour Astronomy Podcast

July: Inner Planets Rule!

True darkness is fleeting in July, especially at higher latitudes. So make the most of the darkness you have, by downloading our narrated Sky Tour podcast to "what's up" in the night sky.

Venus and Mars in the west at dusk, late June 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, June 25 – July 3

Showy Venus and shy little Mars draw closer together in the western dusk. In the east, the Summer Triangle holds sway after dark with the Milky Way behind it.

Stargazer's Corner: Adventures Under the Night Sky

Medium of the Light Bucket

Telescope operator Carla Johns is a medium to the stars.

Temple of the Moon

Eclipses

Plan Ahead for the 2023 Annular Solar Eclipse — and a Visit to Dark Sky Parks

If today’s solar eclipse has you wondering when the next one will cross the continent, start planning now for a stellar trip around October 14, 2023.

Venus and Mars in the western twilight, June 21, 2021

Celestial News & Events

This Week's Sky at a Glance, June 18 – 26

Summer begins. The Honey Moon poses with Spica, Scorpius, and the Teapot as it waxes from gibbous through full this week. Venus lines up, briefly, with Castor and Pollux

M56 globular

Night Sky Sights

Summer Nights Offer Splendid Sights in Lyra

Lyra, the Lyre, offers a wonderful assortment of double stars and deep-sky objects to keep you up at night. Break out your binoculars and telescope and join me for a summertime ramble.

Red nova

Explore the Night with Bob King

Bright Nova in Hercules on a Roller Coaster Ride

A new bright nova discovered in Hercules at 8th magnitude briefly rose to naked-eye visibility. It's currently easily visible in a pair of binoculars.

Explore the Night with Bob King

Chasing the Sun at 39,000 Feet

Sky & Telescope's annular-eclipse flight chased down the "ring of fire" eclipse in the skies above Canada for breathtaking views.

Moon, Mars, Venus in twilight, June 11-12, 2021

Celestial News & Events

This Week's Sky at a Glance, June 11 – 19

The crescent Moon passes Venus, Pollux, Castor, and Mars in the evening twilight. The Big Dipper hangs down; the Little Dipper floats up. And greet the "Betelgeuse of summer."

Annular eclipse

Celestial News & Events

A Sunrise Annular Solar Eclipse

Even if you're not in the path of annularity during the June 10th solar eclipse, get ready for a sunrise spectacle.

Mars, Pollux, Castor in twilight, early June 2021

Celestial News & Events

This Week's Sky at a Glance, June 4 – 12

Pollux and Castor slide down past Mars in the west, while Venus, shining brightly below, tries to hog attention. On the other side of the sky, the enormous arch of the Milky Way hoves into view after dark behind the Summer Triangle.

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