1101–1120 of 1,296 results

Celestial News & Events

A Speedy Asteroid — Captured!

It was faint, and it zipped across the sky at 3° per hour— but 2007 TU24 could be spotted with a good scope if you knew where and when to look.

Celestial News & Events

Jupiter Stalks Venus in the Morning Sky

The sky's two brightest objects (aside from the Sun and Moon) are rapidly approaching each other in the pre-dawn sky.

Celestial News & Events

Here Comes Asteroid 2007 TU24

An 800-foot-wide chunk of rock will pass less than a half million miles from Earth on the night of January 28th.

Celestial News & Events

Martian Crater Named for “Chick” Capen

A crater on Mars has been officially named for the American scientist Charles F. Capen.

Celestial News & Events

Catch the Quadrantids

The Quadrantid meteor shower peaks on the morning of Friday, January 4th, with the best viewing opportunity between 1 a.m. and dawn.

Celestial News & Events

January's Splash of Meteors

The annual Quadrantid meteor shower is one of the year's best — but to catch them you'll need to brave the cold on the night of January 3–4.

Celestial News & Events

Eclipses in 2008

Don't miss February's total lunar eclipse (the last one anywhere until late 2010) — and look ahead to a total solar eclipse in exotic settings in August.

Geminid meteor

Celestial News & Events

Meteor Showers in 2008

With minimal moonlight to interfere, the best meteor showers of 2008 should be the Quadrantids, the Aquarids, and the Perseids.

Celestial News & Events

Sky Highlights of 2008

Eclipses, occultations, conjunctions, and meteor showers — there's no shortage of celestial action in 2008.

Celestial News & Events

The Other Bright Comet of 2007-08

Comet 8P/Tuttle is now near its peak. Although nowhere near Comet Holmes in total brightness, its light is concentrated in a much smaller area, making it considerably more prominent when viewed from typical suburban locations.

Celestial News & Events

The Geminids Are Coming

The best time to view the 2007 Geminid meteor shower from North America is the night of December 13–14, with good prospects the following night as well. In Asia, December 14–15 should be better, and in Europe, it’s a tossup between the two.

Celestial News & Events

Observe Mars Tonight!

Mars now appears bigger through a telescope than it will again until 2016.

Sky Tour Astronomy Podcast

December's Audio Guide to the Heavens

You'll have an easy time spotting Orion leaping up into the sky — with dazzling Mars at his side — if you download this podcast to your MP3 player and head outdoors after dark.

Celestial News & Events

Saturn in the Morning

The ringed planet is at its highest in the sky shortly before dawn in December. And the early-morning sky is full of other marvels, too.

Celestial News & Events

A Revival of Comet Holmes

It's still there! With the Moon now gone from the early-eyening sky, Comet Holmes is the easiest-to-spot "deep sky object" after the Pleiades.

Celestial News & Events

Mars Is Here!

The Red Planet is now nearly as bright — and appears nearly as big through a telescope — as it will any time this year.

Solar System

Call for Images of Venus

Venus Express project scientists are inviting amateur and professional astronomers to contribute Earth-based images of the planet made at infrared, visible, and ultraviolet wavelengths.

Celestial News & Events

Leonids 2007

The Leonid meteor shower peaks on the morning of Sunday, November 18th.

Nova Puppis 2007

Celestial News & Events

Nova in Puppis

On Nov. 14, 2007, a star in the constellation Puppis suddenly became visible in binoculars.

Celestial News & Events

Comet Holmes Starting to Fade

Moonlight aside, conditions remain good for seeing Comet Holmes. But the fuzzy new “star” in Perseus been enlarging and losing surface brightness, and this week it's so close to the star Alpha Persei (Mirfak) that the star interferes with its visibility. Use binoculars.