5681–5700 of 6,712 results

On the Road with David Levy

How I Found My New Comet

In an exclusive story for SkyandTelescope.com, prolific comet hunter David Levy explains how he stumbled across find number 22 while observing near Saturn.

Autumn Equinox Sky Camp 2006

Astronomy & Observing News

England's Autumn Sky Camp

For those who were fortunate enough to attend Britian's Autumn Equinox Sky Camp, they were treated to nine days of astronomical camaraderie along with a few nights of near-perfect observing conditions.

Astronomy & Observing News

A South American Ring Eclipse

Guyana, Surinam, and French Guiana were the places to be to see last Friday's annular eclipse of the Sun. These small tropical countries on the northern coast of South America were the only solid ground touched by the path of annularity at sunrise that day; the rest of its narrow, 13,800-kilometer-long track traversed the open waters of the South Atlantic.

Astronomy & Observing News

Beautiful Universe Reader's Choice Award

Cast your ballot now for the Beautiful Universe 2007 Edition Reader's Choice Award. Our judges have culled the very best images from the hundreds of reader submissions. Have a look at the amazing shots in each of the nine categories and choose your favorites!

Looking southwest in bright twilight

Celestial News & Events

A Crescent Moon and Friends

The crescent Moon all by itself is a gorgeous sight when it hangs low above the horizon amid twilight. The scene improves when it's paired with a second bright object. During the next several evenings the Moon will move southward and upward as it waxes toward first-quarter phase on September 30th.

Celestial News & Events

Mercury-Moon Meeting

Shortly after sunset on Sunday the 24th, you may be able to catch the ever-elusive Mercury in an unusual lineup with Spica and a thin crescent Moon. This one will be a challenge.

Celestial News & Events

An Atlantic Solar Eclipse

On Friday, September 22nd, the Sun will rise as a shining ring of light for lucky skywatchers in South America and Africa.

Type Ia supernova before and during

Astronomy & Observing News

Astronomy's "Impossible" Supernova?

For decades, one of the canonical doctrines in astronomy is that a white dwarf cannot exceed 1.44 solar masses. But now astronomers have found a Type Ia supernova that seems to break the rules.

Celestial News & Events

An Early-Morning Close Encounter

Here's a fun challenge for those who wish to get up with the Sun. About 40 minutes or so before sunrise, head outside and look to the east. As dawn's light grows bright, the hairline crescent Moon has a close conjunction with Venus just above the eastern horizon.

Astronomy & Observing News

Solar Variations Not to Blame for Global Warming

Researchers in the US, Switzerland, and Germany have concluded that changes in the Sun's brightness over the past thousand years have had only a minor effect on Earth's climate, according to a paper published in the September 14th Nature.

Astronomy & Observing News

All Hail Eris and Dysnomia

The bigger-than-Pluto object 2003 UB313 (previously known as Xena) finally has a name. This Kuiper Belt object, which ignited the heated planet-definition debate, will be known as Eris — named for the Greek goddess of strife and discord.

ASP Award Winner

Astronomy & Observing News

New AAS Award for Backyard Research

A new award from the American Astronomical Society recognizes the contribution of backyard stargazers to advancing the science of astronomy.

Astronomy & Observing News

Pluto Gets an Asteroid Number

Without fanfare, the September 7th batch of circulars from the Minor Planet Center assigns number 134340 to Pluto.

Astronomy & Observing News

SMART 1's Dramatic Finale

Right on cue, a European spacecraft slammed into the lunar surface on September 3rd and created a flash on impact bright enough to be seen on Earth.

Celestial News & Events

Earth Bites Moon

On the night of September 7-8, a partial lunar eclipse will be visible in Europe, Africa, Asia, and Australia. On the same night, observers on the west coast of the Americas will see a double shadow transit on Jupiter. Head outdoors and see it for yourself.

Astronomy & Observing News

Shadow Transit on Uranus

For the first time in recorded history astronomers witnessed the shadow of one of Uranus's tiny moons travel across the distant planet's cloud tops.

Astronomy & Observing News

The Fight for Pluto Rages On

A small but growing group of scientists has made the first formal attack against the International Astronomical Union resolution that downsized the solar system and made Pluto a "dwarf planet." On Thursday two heavy hitters in the planetary science community released a scathing petition signed by hundreds of astronomers.

ACME Mapper

Solar System

Out of Reach

Some things to look at and think about while this blogger is away.

Astronomy & Observing News

SMART 1 Awaits Its Fate

A European spacecraft will crash into the Moon on Saturday night, September 2nd, or Sunday morning, September 3rd — and amateur astronomers will be watching for the telltale flash. Many of the world's major observatories will try to record to the event too.

Mount Kobau

Astronomy & Observing News

E. E. Barnard Visits Mount Kobau

The 23rd annual Mount Kobau Star Party took place from August 19th to 26th in the interior of British Columbia. As usual, a hearty group of amateur astronomers braved the elements to plumb Kobau's dark skies for astronomical treasures. And joining them this year was the spirit of Edward Emerson Barnard.