321–340 of 342 results
Leonid fireball from 2001

Explore the Night with Bob King

See November's Speedy Leonids

Often ignored in off years, why not treat yourself to the Leonids this month, a shower famed for fireballs and smoke trails.

Explore the Night with Bob King

Exoplanets for the Mind's Eye

While we may never see a planet orbiting a star other than the sun that doesn't mean we can't go there in a flight of fancy.

Seven Sisters rise again this month

Explore the Night with Bob King

How Many Pleiades Can YOU See?

Most of us are familiar with the Seven Sisters, but have you met their brothers? Learn how to find more Pleiades than first meet the eye.

Cone of zodiacal light stretching into the sky from behind a dark silhouette of evergreen trees.

Explore the Night with Bob King

Zodiacal Light - Captivated by Comet Dust

October's a perfect time to see the zodiacal light, a tapering tower of comet dust standing high in the eastern sky before dawn. Here's how to find it.

ISS slips into shadow over Iowa

Celestial News & Events

Watch a Sunset with the ISS Astronauts

Watch the International Space Station as it passes into the shadow of the Earth, and learn what other features to keep an eye out for (such as the "water dump").

Double Stars

Fomalhaut: A Crazy-Wide Triple Star

Lonely Fomalhaut turns out to have plenty of company. Learn how to find its two remarkably distant stellar companions.

Burst of light in the night

Explore the Night with Bob King

How to Never Miss an Aurora

Learn exactly how and when to expect the next display of the northern lights with a few easy-to-use online tools.

Explore the Night with Bob King

9,096 Stars in the Sky—Is That All?

Ten thousand stars bedazzle the eye on a dark night. Wait, how many?

Celestial News & Events

Meet My Variable Friend SS Cygni

Get acquainted with SS Cygni, the sky's brightest cataclysmic variable star. It's guaranteed to keep you on your toes.

Fortuitous intersection

Celestial News & Events

See Saturn's Moon Rhea Hide a Star

Watch as the moon Rhea steals a star from the sky for nearly a minute on September 12th.

Crescent cradles the 'old moon'

Stargazing Basics

Earthshine, the Moon's Darker Side

With a subtle beauty all its own, the earthshine we see glowing in the lunar night invites us to consider Earth's many connections to the Moon.

Comet and nebula - near and far

Explore the Night with Bob King

Happy Times for Comet Watchers

Seize the moment and bookend your next clear night with two fine telescopic comets: Jacques at dusk and Oukaimeden at dawn.

Explore the Night with Bob King

Close Venus-Jupiter Conjunction on August 18th

Here's your invitation to view a spectacular close conjunction of the sky's two brightest planets, Venus and Jupiter, before dawn on Monday morning.

Graceful arc of shocked gas

Celestial Objects to Observe

How to See Cygnus's Other Veil Nebula

You'll be entering uncharted territory when you seek out this little known 'Shadow of the Veil' in Cygnus this summer.

Proof you can see Earth's shadow even from a big city

Explore the Night with Bob King

Earth's Shadow Creeps Up on Us Every Night

The next time you're out watching a sunset, turn around and relish the mighty shadow of Earth looming just behind your back.

Faculae along solar limb on July 18, 2014

Sun

Blank Sun? Faculae to the Rescue!

Fascinating faculae provide a way for anyone with a small telescope to track the ups and downs of the solar cycle — even when there are no sunspots.

A bright Iridium flare

Explore the Night with Bob King

Predictive Prowess: See an Iridium Flare

Channel your inner superpower by looking up at the night sky precisely when a dazzling blaze of light is beamed to Earth from outer space.

True double samples

Celestial News & Events

See Summer's Best Naked-Eye Double Stars

Not every set of closely paired stars requires binoculars or a telescope to "split". Here's a guide to summertime doubles you can tackle with your eyes alone.

Moon and Saturn on July 7, 2014

Celestial News & Events

Two Moon-Planet Conjunctions Juice Up July

On July 5th, the Moon has a remarkably close brush with Mars, followed two nights later by a similar rendezvous with Saturn.

Two-faced Iapetus

Explore the Night with Bob King

Iapetus Comes Over to the Bright Side

Astronomers now know the secret of this moon's strange two-faced appearance, but it's still remarkable to watch the "now you see it, now you don't" performance as it moves around Saturn.

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