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PICTURE OF THE DAY

Comet Linear

Comet LINEAR meets a galaxy

Damian Peach from Hampshire, England

Comet C/2012 V2 (LINEAR) passed the bright spiral galaxy NGC 2997 in the southern constellation Antlia the Air Pump on September 29. At the time, the comet was 17 light-minutes away while NGC 2997 was 38 million light-years from Earth. (4.3-inch refractor at f/5.6, SBIG STL-11000 CCD camera, LRGB image with exposures of 15, 2, 2, and 2 minutes, respectively, taken September 29, 2013, at 18h19m UT)

IMAGE GALLERIESsee all »

The Week in Pictures: September 21-27, 2013

Comets in the news

Sarah flies with SOFIA

Some non-"Great" comets of the 21st century

READER GALLERIESsee all »

Comet Lovejoy (C/2013 R1) 28 Sep 2013

High-resolution filament & activity area

The Crescent Nebula (NGC 6888)

North America & Pelican Nebulae in "modified" Hubble Palette

IMAGING BASICS see all »

Comet Lovejoy

Catch Comet ISON with your camera

Be ready to photograph this special celestial visitor with these expert tips.

The Leo Trio

2010 Astroimaging Contest: Deep-sky category entrants

Nebulae dominated the category, but the winner is a beautiful trio of galaxies.

The Milky Way

2010 Astroimaging Contest: General category entrants

Image entries ranged from star trails to solar halos, but the category winner is a stunning Milky Way composite.

Eden Patera basin on Mars

Mars crater may actually be ancient supervolcano

galaxy center with incoming cold gas flow

Astronomers observe distant galaxy powered by primordial cosmic fuel

Deflecting light from the Big Bang

Herschel helps find elusive signals from the early universe

POPULAR

Science benefits from diverse landing area of Mars rover

Uranus at its peak October 3

Comet ISON: The real story

Aurora2

See the northern lights with Astronomy magazine!

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