1041–1060 of 1,090 results

Astronomy & Observing News

Opportunity Lands, Spirit Revives

This 360° panorama was assembled from some of the first images beamed to Earth from NASA's Opportunity rover after it landed at Meridiani Planum on Mars.Courtesy NASA/JPL. NASA got a double dose of good news from Mars last night. The Opportunity rover landed successfully on Meridiani Planum and began sending…

Astronomy & Observing News

The Most Massive Star

A luminous blue variable star located some 45,000 light-years away could be the most massive and perhaps the most luminous star ever discovered.

Astronomy & Observing News

More Galaxies that Jump the Gun

Astronomers have found a distant string of galaxies that took shape earlier than current cosmology can explain.

Astronomy & Observing News

The Sun's Closest Twins

Astronomers hope to learn much from our Sun's doppelgangers.

Astronomy & Observing News

Explaining Supernova Explosions

Astronomers are one step closer to understanding how white dwarfs blow themselves up.

Astronomy & Observing News

Old Galaxies in the Young Universe

A survey of galaxies has found that not all star systems in the early universe were small.

Aurora on morning of Oct 29.

Auroras

Auroras Light Up the Sky

Many skywatchers who kept an aurora vigil during the morning hours of October 29, 2003, were richly rewarded by a spectacular display.

Aurora over Boston suburb

Auroras

Solar Flare Spawns More Aurora

For the second time in two nights, an explosion on the Sun triggered a widespread display of the northern lights, this time during the evening of October 30, 2003.

Celestial Objects to Observe

Mars: The Show Continues

Mars will remain a fiery yellow-orange beacon in the evening sky during the first half of September and will shrink and fade only a little until well into October.

Celestial News & Events

Solar Flare Again Spawns an Aurora

For the second time in the last few days, a powerful flare on the Sun triggered an unusual display of the aurora borealis over some of the world's midlatitudes.

Astronomy & Observing News

Meeting the Solar System's Final Frontier

This artist's concept shows structures in the tenuous gas where the expanding solar wind meets the interstellar medium far beyond Pluto. Voyager 1 has apparently crossed the first boundary layer, as described in the text. Voyager 2 still has a way to go.Courtesy NASA / Walt Feimer. NASA's farthest-ranging spacecraft…

Astronomy & Observing News

Black Hole "Sound" Heats a Galaxy Cluster

Bubbling blobs send powerful, super-deep sound waves rippling through a galaxy cluster's hot gas.

Astronomy & Observing News

Mars's Dazzling Sky Show

Late in August the planet Mars passes closer to Earth than it has been in nearly 60,000 years — and the red planet has become a fiery yellow-orange beacon in the evening sky.

Astronomy & Observing News

Scrutinizing Supernovae

Astronomers uncover new clues about what happens in the crucial Type Ia variety of exploding star.

Astronomy & Observing News

The Oldest, Weirdest Planet

It orbits not just one star, but two. And it's almost as old as the universe itself.

Astronomy & Observing News

Keck Interferometer Measures a Future Solar System

In a technological tour de force, the two giant Keck telescopes combine light waves for super-sharp resolution of the disk around a young star.

Astronomy & Observing News

Arizona Scopes Escape Wildfire

Intense firefighting efforts have saved the many telescopes of Steward Observatory northeast of Tucson.

Astronomy & Observing News

NASA To Launch Glowing Night Clouds

NASA will release three luminous clouds into the night sky over the Eastern Seaboard as early as tonight.

Astronomy & Observing News

Delta Scorpii Still Showing Off

For the fourth summer in a row, a special star near Antares is shining abnormally bright.

Astronomy & Observing News

News from the Sun

Solar astronomers meeting this week have announced a spate of new research results about our home star.

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