181–200 of 2,233 results
Crescent Moon with Antares at dusk, Sept. 30, 2022

This Week's Sky At a Glance

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

The Moon poses with Antares at dusk. A few nights later, lunar sunrise unveils the sharp black line of the Straight Wall in Mare Nubium for small-telescope users. Saturn, Jupiter, and Mars span the evening sky. Mercury climbs onstage at dawn.

Cup-shaped dawn crescent Moon, Sept 24, 2022

Celestial News & Events

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

Cygnus and the Milky Way cross the zenith after the end of twilight. Saturn, Jupiter, and Mars await your scope through the night. A thin crescent Moon poses favorably at dawn — because it's cupped.

Jupiter up close

Explore the Night with Bob King

Jupiter's Exceptionally Close Opposition

A sentinel in the autumnal sky, Jupiter marks its closest opposition since 1963.

The waning Moon lines up with Mars and Aldebaran; midnight Sept 16-17, 2022

This Week's Sky At a Glance

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

The late-night Moon aligns with Mars and Aldebaran. Delta Cephei pulses on high. And constellations all over the sky signal the change from summer to fall.

Moon passing under Jupiter Sept 10-11, 2022

Celestial News & Events

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

As the Moon wanes from full to last quarter, passing Jupiter and Mars along the way, darkness returns to the evening sky for constellation spotters and deep-sly observers.

Vega brilliance

Explore the Night with Bob King

Vega, the Star at the Center of Everything

While we may quibble about how to pronounce its name, there's no denying that Vega is one of the most fascinating and useful stars in the heavens.

Waxing gibbous Moon passing Saturn at dusk, Sept 7-8, 2022

This Week's Sky At a Glance

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

As the Moon waxes from first quarter to full, watch it cross the southernmost zodiac constellations, then pass Saturn and Jupiter. Along the way it occults a Teapot star.

Harvest Moon and Jupiter Sept 2022

Sky Tour Astronomy Podcast

September: Harvest Moon & More

Have you ever looked up at the night sky and tried to figure out what's what? September’s Sky Tour astronomy podcast will heighten your enjoyment of the bright stars and constellations now overhead.

Virtual-reality art gallery

Stargazer's Corner: Adventures Under the Night Sky

A New Way to Share Astrophotos

Virtual reality offers another way to share astrophotos with friends and the public.

Moon crossing from Scorpius to Sagittarius, Sept. 2-4, 2022

Celestial News & Events

This Week's Sky at a Glance, Aug. 26 – Sept. 3

Scorpius lies down after dark and the Moon walks across it. Jupiter shines high in the southeast by midnight just about as big and bright as it can ever get. An hour or two earlier, Saturn reaches a good observing height.

Battered Vesta

Asteroids

Observe Vesta — and Own a Piece of It, Too

Vesta's bright and easy to find in binoculars and maybe even with the naked eye in late summer skies. It's also just as easy to acquire a piece of it without a multi-billion dollar space mission.

Moon passing Mars and Aldebaran, Aug 19-21, 2022

Celestial News & Events

This Week's Sky at a Glance, August 19 – 27

Late these nights, Saturn and Jupiter are about at their very biggest telescopically. Vega passes the zenith, and the Milky Way displays itself in moonless dark.

People, Places, and Events

Peering Up Into Prairie Skies

The Nebraska Star Party offers truly dark skies enjoyed by veteran observers and first-timers alike.

Interferometry image of Rasalhague

Celestial Objects to Observe

Meet Rasalhague, the Star with the Snake

Rasalhague, a star rotating so fast it has squashed itself, has a fascinating connection to the mythology of healing.

Moon passing Jupiter at dawn, Aug 15-16, 2022

This Week's Sky At a Glance

This Week's Sky at a Glance, August 12 – 20

Saturn is at opposition, the Perseids contend with moonlight, and once the Moon is gone from the evening sky, the summer Milky Way arches high.

Perseid 2021

Meteors

Perseids Are Coming, Full Moon or Not

Don't use a full Moon pass to skip this year's Perseid meteor shower. Right here, right now, we're going to help you make the most of it.

Venus low at dawn with fainter Pollux and Castor, Aug 6, 2022

This Week's Sky At a Glance

This Week's Sky at a Glance, August 5 – 13

The Moon and Saturn come to opposition this week, showing us their full sunlit faces. Jupiter looms big late in the night, Vega attains the zenith, and we cross the midpoint of summer. The Perseid meteors get partly mooned out.

Perseid over Stellafane in 2010

Sky Tour Astronomy Podcast

August: Saturn & the Perseids

August marks the return of the Perseid meteor shower — and as you’re looking out for shooting stars while listening to this month’s Sky Tour podcast, look for Saturn low in the southeast as soon as night begins to fall.

Mercury and Regulus very low in bright twilight, Aug. 3, 2022

Celestial News & Events

This Week's Sky at a Glance, July 29 – August 6

As the Big Dipper dips and the Guardians of the Pole align one over the other, Saturn looms low in the southeast and the False Comet teases at its highest.

Earthshine painting

Night Sky Sights

Solving an Earthshine Mystery

Something we take for granted about the crescent Moon's appearance may be nothing more than an optical illusion.