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Flying Over the Earth at Night II
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Dark Dust and Colorful Clouds near Antares
Why is the sky near Antares and Rho Ophiuchi so dusty yet colorful?
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The Perseids and the Plough
Despite interfering moonlight, many denizens of planet Earth were able to watch this year's Perseid meteor shower.
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The Galactic Center in Radio from MeerKAT
What's happening at the center of our galaxy?
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Sunset Analemma
The Sun reaches the northernmost declination in its yearly journey through planet Earth's sky.
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Astronomy Picture of the Day: A Rainbow Geminid Meteor
Meteors can be colorful. While the human eye usually cannot discern many colors, cameras often can.
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Astronomy Picture of the Day: Aurora Shimmer, Meteor Flash
Some night skies are serene and passive -- others shimmer and flash. The later, in the form of auroras and meteors, haunted skies over the island of Kvaløya, near Tromsø Norway on 2009 December 13.
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Astronomy Picture of the Day: Good Morning Leonid
On November 17, just an hour before sunrise, this bright and colorful meteor flashed through clear predawn skies.
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Astronomy Picture of the Day: Cherenkov Telescope at Sunset
On October 10, a new telescope reflected the light of the setting Sun.
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Astronomy Picture of the Day: Orion in Red and Blue
When did Orion become so flashy? This colorful rendition of part of the constellation of Orion comes from red light emitted by hydrogen and sulfur (SII), and blue-green light emitted by oxygen (OIII).
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