5681–5700 of 6,755 results

New Product Showcase

Lightweight Observatory

Smart Astronomy has introduced the Clear-View Portable Observatory Tent, a lightweight and effective means for you to observe in comfort, free from wind and annoying stray light.

New Product Showcase

Economical "Go To"

With the overwhelming popularity of Go To telescopes, it's surprising that a product like the Cube from iOptron hasn't come along before now.

New Product Showcase

Clear-Sky Gadget

If you live in North America and have a PC running Windows Vista, you can have Attilla Danko's Clear Sky Clock (CSC) on your desktop 24 hours a day.

Astronomy & Observing News

The First Triple Quasar

In an announcement made on Monday at the American Astronomical Society conference in Seattle, astronomers confirmed that quasars can come in threes.

Astronomy & Observing News

News from the AAS

About 3,000 scientists from around the world gathered Sunday in Seattle, Washington, for the 209th meeting of the American Astronomical Society. Hundreds of discoveries were announced on the conference’s first day. Here are few of the highlights.

Celestial News & Events

Meteor Showers in 2007

The coming year promises to be a good one for observing showers of shooting stars.

Celestial News & Events

Tour January's Sky by Ear

January nights may be cold, but they boast a spectacular array of constellations. Our podcast will guide you through this month's sky with no need to fuss with paper or red flashlights.

Astronomy & Observing News

A New Foundation for the AAVSO

The American Association of Variable Star Observers is moving into Sky & Telescope's old headquarters at 49 Bay State Road, Cambridge, Massachusetts.

Astronomy & Observing News

The Year in Astronomy 2006

Remember when the solar system had nine planets? When the Hubble Space Telescope was doomed? And when Jupiter only had one red spot?

Looking southwest in bright twilight

Celestial News & Events

Celestial Omens

Go out at dusk to see Venus and the crescent Moon pair up. It is always a sight to behold when the brightest objects in the evening sky get together.

Astronomy & Observing News

Life with a Red Dwarf

The commonest stars in the universe aren't very Sun-like — but they could still have life-bearing planets. However, those worlds aren't like anything you've ever seen. Imagine a home world where half of the planet basks in eternal day, the other cloaked in eternal night.

Astronomy & Observing News

An Ancient Building Block of Life

Astronomers have long assumed that carbon-based molecules — essential for life as we know it — were among the building blocks of our solar system. Now they have the evidence to back their claims. The smoking gun came from measurements of the famed Tagish Lake meteorite.

Looking southeast in bright dawn

Celestial News & Events

A Reason to Rise

Most of us consider weekends a time for sleeping in, but skywatchers who get up before the Sun are presently in for a treat. A trio of planets will dance with the bright star Antares, and on the mornings of the 17th and 18th there will be a guest appearance by the waning crescent Moon. The performance is free, but clear skies and an unobstructed southeastern horizon are required.

Celestial News & Events

Aurora Watch!

Talk about a red-letter night for astronomy. Not only are Geminid meteors still raining down from the skies, there is a major aurora alert in effect for Thursday and Friday. No telescope needed. Just get outside and look up.

Astronomy & Observing News

Night Sky Magazine to Cease Publication

Sky Publishing has decided to stop producing Night Sky, its bimonthly magazine for beginning amateur astronomers. The March/April 2007 issue will be the last.

Celestial News & Events

Best Meteor Shower of 2006

With only minor interference from the Moon, the Geminids should put on a great display late Wednesday night and Thursday morning. What's more, a major solar flare just erupted, providing a strong chance for a tremendous northern lights show on Thursday or Friday.

Astronomy & Observing News

Flowing Mud on Today's Mars?

Newly released images from Mars Global Surveyor strongly suggest that liquid water could be flowing across the surface of Mars right now.

Astronomy & Observing News

Meade Steps into the Sunshine

Telescope giant Meade Instruments will acquire Coronado Technology Group, the leading manufacturer of hydrogen-alpha filters and telescopes for solar observing.

Montauk telescope

Astronomy & Observing News

Long Island Gets a Big Scope

A nonprofit group has purchased a research-grade telescope for a planned public observatory in a dark-sky site.

Celestial News & Events

Tour August's Evening Sky in 2006

Download this MP3 file to your iPod or other handheld device, and you'll be guided to Jupiter, the constellation Scorpius, the Milky Way, and more! You'll also get tips on when and how to watch the Perseid meteor shower. (5.5MB file; hosted by Kelly Beatty, editor of Night Sky magazine.)