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Crescent Moon, Venus and Spica low after sunset, Sept 6, 2024

Celestial News & Events

This Week's Sky at a Glance, September 6 – 15

The Moon starts the week low in twilight with Venus and Spica, then steps eastward past Antares and the Sagittarius Teapot. Meanwhile, the recurrent nova in Corona Borealis is still keeping us waiting.

Venus and Spica low in bright twilight, Aug 30, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, August 30 – September 8

Low in twilight, climbing Venus and descending Spica prepare to pass each other. After dark Vega crosses the zenith, and Scorpius beds down. Mercury shines at dawn.

ISS full pass

Explore the Night with Bob King

Flight into Darkness — Observe the International Space Station in Earth's Shadow

Did you know you can see the International Space Station even when it's in Earth's shadow? We explore possible reasons why.

Moon passing Aldebaran, Mars and Jupiter in early dawn, Aug 26-28, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, August 23 – September 1

We're in peak Milky Way season, and the evenings have become dark and moonless. Andromegasus is up. So is Saturn. Before dawn, the late-risen Moon passes over Jupiter and Mars.

Jupiter and Mars together before dawn, Aug. 17, 2024

This Week's Sky At a Glance

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

Vega shines overhead as the zenith star at dusk. Jupiter and Mars are separating. When the Moon is just past full it poses next to Saturn — which, by no coincidence, is less than a month from opposition.

C/2023 A3 from Namibia

Explore the Night with Bob King

Status Report and Expectations for Comet Tsuchinshan-ATLAS

Is Comet Tsuchinshan-ATLAS falling apart? How bright will it likely get? We try to answer those questions and more.

Perseid aurora

People, Places, and Events

Tonight's Perseid Meteor Shower May Be Dipped in Aurora Sauce

The Perseids peak on Sunday night, August 11-12 and just might be joined by a colorful display of northern lights. 

Perseids with star trails

Explore the Night with Bob King

Woo-hoo — The Perseid Meteor Shower Is Coming!

It's time again for the annual August meteor-shower fest, the Perseids. This year's display should be a beauty with only minor moonlight and a special surprise at dawn.

Jupiter and Mars closing in on each other before dawn, August 10, 2024

This Week's Sky At a Glance

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

The Perseid meteor shower peaks late Sunday night August 11th and maybe Monday night too. Jupiter and Mars have a close conjunction on the morning of the 14th, looking radically different in the same telescopic view.

Jupiter and Mars nearing conjunction in the east before dawn, August 10, 2024

This Week's Sky At a Glance

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

The Perseid meteors ramp up this week to their peak. Saturn is nicely up in the east by late evening. Jupiter and Mars near their conjunction in the morning sky. And there's a story behind Poniatowski's Bull.

Venus, Mercury and Regulus very low in the west in bright twilight, July 26, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, July 26 – August 4

Very low in the west in bright twilight, have you picked up Venus yet? Binoculars help. Much tougher will be Mercury and Regulus. Their arrangement changes all week.

Rasalhague (Alpha Ophiuchi) turns the Summer Triangle into a cut diamond.

Celestial News & Events

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

Scorpius poses at center stage in the south. The Sagittarius Teapot follows behind it. And Rasalhague, the head star of Ophiuchus. turns the Summer Triangle into a big, upright diamond.

Regulus and Mercury in twilight, July 12, 2024

This Week's Sky At a Glance

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

Mercury lurks in the sunset. The July Moon rides low across the sky this week as it waxes from first quarter to full. It occults springlike Spica, then passes summery Antares to hang with the Teapot.

Moon passing Regulus, July 7-9, 2024

This Week's Sky At a Glance

This Week's Sky at a Glance, July 4 – 14

The waxing Moon passes Regulus on its way to occulting Spica July 13th. The Kite of Boötes tilts toward the Dipper. And the largest asteroid is at opposition.

Spica occultation map

Explore the Night with Bob King

Catch an Exciting Spica Occultation on July 13th

Don't miss Spica's dramatic disappearance at the Moon's dark limb. We also check in on the status of current bright comets.

This Week's Sky At a Glance

This Week's Sky at a Glance, June 28 – July 7

It takes hardly more than a glance up these evenings to check for the anticipated eruption of T Coronae Borealis, the Blaze Star.

T CrB map

Celestial News & Events

Is the "Blaze Star" About to Blow? You May Be the First to Know

T Coronae Borealis is a nova star that's due to suddenly — and briefly — brighten. Here's how to see this once-in-a-lifetime event.

Jupiter barely emerging in bright dawn, June 22, 2024

This Week's Sky At a Glance

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

The two brightest stars of summer balance across the zenith. Arcturus and Vega represent the two commonest spectral types, and colors, of all the naked-eye stars in the sky.

Planet parade

Celestial News & Events

See the Real Planet Parade

Maximize your planetary pleasure and get re-acquainted with Earth's siblings during the June 29th dawn planet parade.

Moon crossing Scorpius, June 18-20, 2024.

Celestial News & Events

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

On solstice week the brightening Moon moves across the evening sky from Spica to Scorpius. On Monday, it helps you find a piece of Centaurus from as far north as southernmost Canada!

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