4821–4840 of 6,069 results

Celestial News & Events

Mercury Meets the Twins

In the early morning hours of August 1st, you can see Mercury in the constellation Gemini.

Professional Telescopes

ESO's Sweet Ride

Astronomers unveil the latest thing in transporting giant telescopes.

Celestial News & Events

Jupiter's Circulating Current

Amateurs capture Jupiter's spots in the act of jumping belts.

Solar System

Comet Discoverers Awarded

This year's Edgar Wilson Award went to three unique amateur comet discoverers.

Exoplanets

Why So Lopsided?

A star 150 light-years away is surrounded by a disk of debris that might indicate that hidden planets are throwing their weight around.

Celestial News & Events

Increasing Chance of Meteors

The meteor rate is finally picking up after a multi-month drought.

Astronomy and Society

The Economics of Impacts

Can't have enough of people thinking about the threat of asteroids.

Space Missions

Is a New Moon News?

Thanks to the latest find by the Cassini spacecraft, we now know that Saturn has 60 satellites circling it.

Space Missions

The End of the Rovers?

The dust clouds on Mars are blocking out so much sunlight that the Mars Exploration Rovers may not survive until the storm blows over.

Celestial News & Events

Star Cluster/Comet Encounter

On Sunday evening Comet LINEAR (C/2006 VZ13) passes within kissing distance of the great globular star cluster Messier 3.

Solar System

The Walnut-Shaped Moon

Scientists now think they know why Saturn's moon Iapetus has its distinctive nutty character.

Solar System

Ice Volcanoes Everywhere?

Pluto's largest moon, Charon, might be the latest solar system body with active geysers on its surface.

People, Places, and Events

Big Checks for Astronomers

Two teams of astronomers have won $500,000 for revealing that the universe is growing bigger at an ever increasing rate.

Celestial News & Events

Mercury in the Morning

The innermost planet makes a fine appearance in the eastern sky during the last two weeks of July.

Pro-Am Collaboration

A Ringside View of Uranus

Astronomers have assembled an armada of telescopes to observe Uranus in a way that hasn't been possible since the 1960s.

Professional Telescopes

The New Largest Telescope in the World

With an aperture of 10.4 meters, Spain's new Gran Telescopio Canarias is about to assume the title.

Space Missions

Thanks to Akari, I'm Seeing (Infra)Red

Japanese and European astronomers have proudly unveiled the first all-sky map of the deep infrared sky in more than 20 years.

Solar System

Martian Dustup Has an Impact

As a storm rages in Mars's atmosphere, two rovers on the surface and three orbiters above wait for the dust to settle.

Celestial News & Events

Spotty Weather

There's a cool sunspot group visible right now. If the weather is clear, go grab a safe solar viewer and check it out for yourself.

Celestial News & Events

Comet LINEAR Graces the Northern Sky

An unexpectedly bright comet is crossing a well-known part of the sky.