641–660 of 1,474 results
Full moon

Celestial News & Events

What to See with Your New Telescope During 2017 Holidays

Maybe you just got a shiny new telescope to call your own. Congratulations — you could be on your way to discovering many amazing, far, deep things in the night sky. Although most of them are so far and faint that just locating and detecting them is the challenge! Whether…

Celestial News & Events

What's the Thinnest Crescent Moon You Can See?

A slender Moon is an beautiful and inspiring sight. December and January offer several opportunities to see these exceptional crescents.

Celestial News & Events

Fantastic Year for Geminid Meteor Shower

Mark the date: December 13th. That's the night the Geminid meteor shower peaks. Highlighted by the return of its parent asteroid 3200 Phaethon, this year's show promises to be one of the best ever.

December's predawn view

Celestial News & Events

Tour December's Sky: See 3 Planets at Dawn

As you'll hear in December's astronomy podcast, early risers are treated with views of Jupiter (obvious), Mars (not as easy), and Mercury (timing is everything!).

Celestial News & Events

Asteroid 3200 Phaethon: Geminid Parent at Its Closest and Brightest!

The parent asteroid of next month's Geminid meteor shower, 3200 Phaethon, is about to make a historically close flyby. Get ready to watch it race across the sky.

Celestial News & Events

Invite Ross 128 Over This Thanksgiving

With exoplanet Ross 128b in the news, we pay a visit to the star that sustains this potentially habitable exoplanet.

Celestial News & Events

An Exquisite Venus–Jupiter Conjunction

Venus bids farewell at dawn, but not before a close encounter with returning Jupiter.

Plot of Triton occultation chords

Celestial News & Events

Results from October's Triton Cover-Up

By watching a star’s disappearance, astronomers learned about the state of the ultrathin atmosphere of Triton, Neptune's largest moon.

Celestial News & Events

Comet Heinze (C/2017 T1): A Binocular Comet for the New Year?

Just discovered, Comet Heinze (C/2017 T) will zoom by Earth in January and may just show up in your binoculars.

Celestial News & Events

November Occultations of Aldebaran & Regulus

The Moon occults two 1st-magnitude stars for much of North America just six days apart. The first event happens mostly in early-evening darkness, the second in broad daylight — an extra challenge for the adventurous.

Venus-Jupiter in November 2017

Celestial News & Events

Tour November's Sky: Predawn Planets

As you'll hear in this month's astronomy podcast, Venus and Jupiter are putting on quite a show low in the east before dawn.

Celestial News & Events

Get Moonstruck on International Observe the Moon Night

International Observe the Moon Night gathers people together to observe the Moon and to learn more about it. This year InOMN will be on Saturday, October 28th.

Celestial News & Events

Orionid Meteors Max Out Sunday, Zodiacal Light Returns

See what cosmic dust can do! Head outside this weekend for the peak of the Orionid meteor shower and an eyeful of zodiacal light.

Regulus removed

Celestial News & Events

Busy Skies Ahead: Comets, a Supernova, and a Dramatic Regulus Occultation

What's your pleasure when it comes to observing? Comets? Supernovae? Occultations? Get a sample of each and more in the upcoming week.

Celestial News & Events

Venus and Mars Kiss at Dawn

Be sure to set the alarm so you don't miss the squeaky-tight conjunction of Venus and Mars Thursday morning. They'll stay close through the weekend.

Icy weirdness on par with Pluto

Celestial News & Events

Neptune's Moon Triton to Occult Star

Here’s an opportunity for amateurs to help improve our understanding of Neptune’s moon Triton.

Celestial News & Events

Giant Sunspots, Flares Presage Arrival of Solar Storm

Two big, naked-eye sunspot groups are putting on a splendid show this week. We're also in the crosshairs for a strong geomagnetic storm and possible auroras.

Saturn in late September

Celestial News & Events

Tour September's Sky: Saturn Time!

In September's astronomy podcast, you'll learn what's special about the ringed planet Saturn, now visible in the evening sky.

Celestial News & Events

Asteroid Florence Pays Earth a Visit

Florence, one of the largest Earth-approaching asteroids, gets close enough to see in a small telescope this week and next. Here's how to find it.

Eclipse Vs Solar

Celestial News & Events

Total Eclipse vs Solar Power

In addition to clogged roads and crowded hotels, the 2017 solar eclipse had another big effect on U.S. infrastructure: reduced solar power production.