Happy (or is it Merry?) Aphelion This Friday

By David Dickinson - July 02, 2013 03:47 PM UTC | Solar Astronomy

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How Cold is Space?

By Fraser Cain - July 02, 2013 02:06 PM UTC | Physics

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The Hunt for Exomoons Begins!

By shannon-hall - July 02, 2013 02:05 PM UTC | Exoplanets

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Russian Rocket Fails During Launch, Explodes After Liftoff

By Jason Major - July 02, 2013 03:48 AM UTC | Missions

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It's Cassini in Motion: Watch the First Teaser for "In Saturn's Rings"

By Jason Major - July 01, 2013 11:56 PM UTC | Planetary Science

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Orion takes shape for 2014 Test Flight

By ken-kremer - July 01, 2013 10:17 PM UTC | Missions

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Weekend Auroras Fill the Sky!

By Nancy Atkinson - July 01, 2013 03:25 PM UTC | Planetary Science

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Beautiful Timelapse -- and an Invitation to Try Capturing the Night Sky from a City

By Nancy Atkinson - July 01, 2013 02:52 PM UTC | Observing

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Astronomers Capture Images of Herschel Telescope Heading Toward its 'Graveyard' Orbit

By Nancy Atkinson - July 01, 2013 02:15 PM UTC | Telescopes

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Zodiacal Light Over ESO's La Silla Observatory

By Jason Major - June 29, 2013 08:28 PM UTC | Observing

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What is the Distance to the Moon?

By Fraser Cain - June 29, 2013 05:16 PM UTC | Planetary Science

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No, This Image Was Not Taken from the Space Station, But it Sure Looks Like It

By Nancy Atkinson - June 29, 2013 02:05 PM UTC | Space Exploration

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Opportunity Approaching Mountain Climbing Goal and Signs of Habitable Martian Environment

By ken-kremer - June 29, 2013 01:52 AM UTC | Planetary Science

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An "Elemental" Explanation of Dark Matter

By Jason Major - June 28, 2013 09:30 PM UTC | Cosmology

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Neutron Stars: A Cataclysmic Conception

By tammy-plotner - June 28, 2013 08:14 PM UTC | Stars

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What Happens When Stars Collide? In This Case, A Newly Observed Kind of Pulsating Star

By Elizabeth Howell - June 28, 2013 03:29 PM UTC | Stars

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How to Pay for That Latte on the Moon? PayPal Has a Plan

By Nancy Atkinson - June 27, 2013 08:01 PM UTC | Space Policy

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We've Found 10,000 Near-Earth Objects. How To Step Up The Search?

By Elizabeth Howell - June 27, 2013 03:55 PM UTC | Planetary Science

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This Supernova Had A 'Delayed Detonation'

By Elizabeth Howell - June 27, 2013 03:24 PM UTC | Stars

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How Amateur Astronomers Can Help LADEE

By David Dickinson - June 27, 2013 03:06 PM UTC | Missions

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