Featured Article: This Month's Night Sky
Mercury Gives Southern Skywatchers Its Best Show of 2014
This week, observers in the Southern Hemisphere looking west just after sunset will have a fine view of the planet Mercury. This will be the view from Melbourne half an hour after sunset.
September 20th, 2014
Mercury will be at its greatest elongation from the sun on Sunday (Sept. 21). Because of the tilt of the Earth's axis, this will place it high above the horizon in the Southern Hemisphere, but too low to be observed in the Northern Hemisphere.
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Spectacular Auroras from Solar Storms Wow Stargazers (Photos, Video)
Lapland aurora
September 15th, 2014
Back-to-back eruptions on the sun sparked a geomagnetic storm last week, which generated dazzling auroras over the northern latitudes.
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See Jupiter and the Moon Meet Up in Pre-dawn Sky Saturday
September 19th, 2014
Look toward the eastern sky during the predawn hours tomorrow, and, weather permitting, your eyes will immediately be drawn to the two brightest objects in the sky: the moon and Jupiter.
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WATCH LIVE @ 7:30 pm ET: Planet Definition Debate Tonight
Pluto Viewed From One of Its Moons
September 18th, 2014
The Harvard-Smithsonian Center for Astrophysics is hosting a debate tonight (Sept. 18) at 7:30 p.m. EDT about the definition of the term "planet." Here's how to watch live.
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Sagittarius: How to Spot a Cosmic Archer in the Night Sky
Stars of Sagittarius
September 14th, 2014
On these late-summer evenings after the sun has set, look low in the south for the classical Archer: the constellation Sagittarius.
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Back-to-Back Sun Storms May Supercharge Earth's Northern Lights
The northern lights dance over Earth in shimmering green light on Aug. 29, 2014.
September 11th, 2014
Powerful solar flares from the sun this week may amplify the northern lights displays over parts of the northern United States through the weekend, space weather scientists say.
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Jaw-dropping Aurora View Wins 2014 Astronomy Photo Contest
stronomy Photographer of the Year 2014 Winner
September 18th, 2014
A bright green aurora reflects off a glacial lake against the backdrop of a snow-covered mountain range in an incredible photo that took home first prize in an astrophotography competition.
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How to Take Clear Shots of a Light-Polluted Milky Way (Photos, Video)
How to Shoot the Milky Way
September 17th, 2014
Spotting the Milky Way on dark, cloudless nights can be a challenge for anyone, but trying to see it through the haze of light pollution in a crowded city is nearly impossible.
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