5881–5900 of 6,095 results

Astronomy & Observing News

Belly of the Beast

The center of our Milky Way galaxy swarms with gas clouds and millions of stars and is anchored by a supermassive black hole. Only objects that emit X-rays appear in this new image from the Chandra X-ray Observatory satellite. The black hole is embedded in the brightest point at center.…

Astronomy & Observing News

Ring Around the Galaxy

The Sloan Digital Sky Survey (SDSS) is being carried out with a 2.5-meter (100-inch) telescope in New Mexico, seen here at sunset with project director John Peoples. When finished, the SDSS will be a fundamental resource used by astronomers worldwide for many years to come. The newly discovered ring around…

Astronomy & Observing News

Io's Salty Secret

Volcanic activity on the Jovian moon Io stains the surface with red and yellow allotropes of sulfur. Recent observations show that the moon's frequent outpourings are seasoned with a little salt.Courtesy University of Arizona and NASA. It might not seem surprising that Io, the Jovian moon famous for its vigorous…

Astronomy & Observing News

Astronomy Stories Dominate Prestigious List

2002 was an action-packed year for astronomy aficionados.

Astronomy & Observing News

Astro News Briefs: December 23–29

Silent Nights for NEAR and Contour December 24, 2002 | Two teams from Johns Hopkins University's Applied Physics Laboratory (APL) have made unsuccessful attempts to regain contact with two silenced spacecraft. On December 10th, engineers spent 12 hours trying to communicate with the NEAR Shoemaker probe, which has sat on…

Astronomy & Observing News

Storm Clouds on Titan

New infrared views of Saturn's biggest moon reveal towering, fast-moving storms in a murky, methane-laced atmosphere.

Astronomy & Observing News

Making Moons Slowly

It seems it took Jupiter's largest moons 100,000 years or more to form. That's 100 times slower than previously believed.

Astronomy & Observing News

Astro News Briefs: December 16–22

"First Light" for Integral December 18, 2002 | In Paris, France, today, researchers from the European Space Agency (ESA) unveiled the initial images from the International Gamma-Ray Astrophysics Laboratory (Integral), the agency's most powerful high-energy observatory. The spacecraft, launched in October, carries four X- and gamma-ray telescopes, as well as…

Astronomy & Observing News

Rubble-Pile Moon

One of Jupiter's moons may actually be a loosely-packed ball of broken rocks.

Astronomy & Observing News

Double Bubble

The Hubble Space Telescope has unveiled a beautiful peanut-shaped dust cloud.

Astronomy & Observing News

Mystery Trains

Scientists are closer to determining what causes the lingering smoke train behind some meteors.

Astronomy & Observing News

Exoplanet's Mass Pinned Down

For the first time, astronomers have measured a star's side-to-side wobble caused by an orbiting planet.

Astronomy & Observing News

Darkness Falls Upon Dark Continent, Outback

December 4, 2002 brought with it yet another spectacular total solar eclipse.

Astronomy & Observing News

Martian Meteorites Made Easy

New simulations show that impacts on Mars should be blasting chunks of the Planet out into space — and eventually onto Earth — about once every 200,000 years.

Astronomy & Observing News

Jupiter's Lovers

Eleven of Jupiter's moons have received their official names.

Astronomy & Observing News

Astro News Briefs: November 18–24

"Tunguska" Impacts Rarer Than Thought November 21, 2002 | Over the past 8½ years, satellite sentinels operated by the U.S. Department of Defense have detected 300 powerful explosions in our atmosphere caused by asteroidal fragments from 1 to 10 meters across. That alarming statistic is relatively good news, says Peter…

Astronomy & Observing News

Hubble Tracks a Runaway Black Hole

New observations of a binary black-hole system may shed light as to its origin.

Celestial News & Events

Observing the Leonids

Here are some tips to help you observe the Leonid meteor shower.