661–680 of 1,469 results
Great American Eclipse

Celestial News & Events

Solar Eclipse Apps You'll Need on Eclipse Day

Want to know when the eclipse begins and ends in your hometown, or what's the quickest way to the path of totality? Looking for an eclipse countdown timer? There are eclipse apps for that!

Colorful Perseid fireball

Celestial News & Events

The Perseids: Big Eclipse's Opening Act

The upcoming total solar eclipse is understandably getting a lot of attention, but don't overlook the trusty Perseids. They'll be getting things warmed up Saturday night.

Celestial News & Events

Total Solar Eclipse: All-Sky Maps

Wondering what you'll see during the total solar eclipse on August 21st? Use our all-sky maps to figure it out!

Celestial News & Events

August 7th's Partial Lunar Eclipse

Two weeks before the much-awaited solar eclipse, the Moon clips Earth's umbra to create a partial lunar eclipse visible from the Eastern Hemisphere.

Celestial News & Events

AAS's Advice for Safe Solar-Eclipse Viewing

Due to alarming reports of potentially unsafe eclipse viewers as eclipse day approaches, the American Astronomical Society has revised its safety advice.

Celestial News & Events

How to Read the Weather the Day Before the Eclipse

Weather will play a crucial role on eclipse day. Meteorologist and eclipsophile Jay Anderson shares his tips for predicting the unpredictable: eclipse weather.

Celestial News & Events

What Kind of Solar Eclipse Will You See?

From the makers of SkySafari comes an eclipse widget that lets you see the circumstances of the August 21st solar eclipse for any location.

Celestial News & Events

Sky Surprises: New Comet ASASSN1, Nova in Scutum, and Supernova in Pisces!

Between the discovery of the new comet ASASSN1 and two stellar explosions, there's a lot happening in the sky this week. Take your telescope out and see what all the excitement's about.

Celestial News & Events

Let's Find Pluto!

At opposition this week and as bright as it will be for the next 190 years, it's time to find your way to Pluto, a frigid enigma at the edge of night.

Celestial News & Events

Eclipse 2017: T–2 Months and Counting

With two months to go until the total solar eclipse on August 21, it's time to get planning — if you haven't already!

Celestial News & Events

Hello, Saturn! We're Glad You're Back

Saturn, considered by many the most beautiful sight in the sky, comes to opposition this week with its rings in full tilt. You won't want to miss it.

Giant ringed planet

Celestial News & Events

Help Astronomers Track a Giant, Ringed Planet

The possible discovery of a massive ringed planet in Orion needs confirmation — and amateur astronomers can help.

Saturn and the Moon in early June

Celestial News & Events

Tour June's Sky: Saturn at Opposition

June's astronomy podcast takes you on a star- and planet-studded tour of the sky you'll see after sunset.

Venus over Lake Superior

Celestial News & Events

Watch Venus and Uranus Double Up Beneath a Comet

Following an occultation of Rho Leonis by the Moon, watch Venus and Uranus pair up in a weekend conjunction just 10° from Comet ER61 PanSTARRS.

5th Jupiter flash on record

Celestial News & Events

New Impact Flash Seen on Jupiter

Flash! A comet or asteroid fragment whacked Jupiter on May 26th. It's the sixth time that observers on Earth have witnessed an impact on the giant planet.

Celestial News & Events

Bright Supernova Discovered in "Fireworks Galaxy" NGC 6946

A brand new supernova in NGC 6946 is bright enough to see in modest-sized telescopes. Here's how to find it.

Celestial News & Events

Watch Comet Johnson Sprint Through Boötes

Another binocular comet? You better believe it. Comet Johnson takes center stage at nightfall this month and next.

Regulus and late-May Moon

Celestial News & Events

Tour May's Sky: Big Dipper Leads the Way

Listen to May's astronomy podcast to learn why stargazers think of the Big Dipper as the "Swiss Army Knife" of the late-spring northern sky.

Celestial News & Events

Lyrids to Put on a Weekend Light Show

The annual Lyrid meteor shower will add some pop and sizzle to Saturday's pre-dawn sky. With little interference from the Moon, conditions are ideal for meteor watching.

Just Saying Hello

Celestial News & Events

See a Potentially Hazardous Asteroid From Your Backyard

Get ready for 2014 JO25, the biggest asteroid to fly this close to Earth since 2004. Good news — even a 3-inch telescope will show it! Update: See below for a radar image and animation of 2014 JO25 captured by NASA's Goldstone Solar System Radar on April 18, 2017. Every week, a…