Universe Today
More Evidence That Comets May Have Brought Life to Earth
What is the Earth's Average Temperature?
Late Summer Tales of Tanabata
Indian Mars Orbiter Shoots Spectacular New Images of Sheer Canyon and Curiosity's Crater
What Is A Dwarf Planet?
Spectacular Celestial Fireworks Commemorate Perihelion Passage of Rosetta's Comet
Ride Along with New Horizons on its Pluto Flyby
Carnival of Space #418
Milestone Test Firing of NASA's SLS Monster Rocket Engine Advances Human Path to Deep Space
The Dwarf Planet Haumea
Why is it Tough to Land on a Comet?
Cygnus Freighter Arrives at Kennedy as Orbital ATK Ramps Up Station Resupply Recovery Efforts via Atlas V
What's Coming After Hubble and James Webb? The High-Definition Space Telescope
Gallery: 2015 Perseids Are Putting on a Show
Revealed: Mars to Appear Larger Than a Full Moon!
The Journey of Light, From the Stars to Your Eyes
Congressional Slashes to NASA Commercial Crew Force Bolden to 'Buy Russian' rather than 'Buy American'
The Dwarf Planet Ceres
Located in the Solar System's Main Asteroid Belt, between the orbits of Mars and Jupiter, is the dwarf planet Ceres, a strange and mysterious world that could harbor life!
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A Thrift Store Find Yields an Astronomical Mystery
Dramatic Outburst at Rosetta's Comet Just Days Before Perihelion
Yummy! ISS Astronauts Eat First Space-Grown Food
Our Universe is Dying
What is the Oort Cloud?
At the edge of the Solar System, there exists a large cloud of icy material and rock, which is where most known comets come from.
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The 2015 Perseids: Weather Prospects, Prognostications and More
How Massive Can Black Holes Get?
See Venus at Her Most Ravishing
The Dwarf Planet Sedna
Mysterious Bright Spots and Pyramidal Mountain Star in Dawn's Daunting Flyover of Ceres: Video
Kick Back, Look Up, We're In For a GREAT Perseid Meteor Shower
Stealing Sedna
Moon Transits Earth in Eye-poppingly EPIC View from 1 Million Miles Away
Carnival of Space #417
Could We Terraform Jupiter?
The Planet Mercury
Curiosity Drills Deep into First High Silica Martian Rock on Third Touchdown Anniversary
The Dog Days and Sothic Cycles of August
Will SETI's Unprecedented New Program Finally Find E.T.?
Kirk, Spock and Sulu Boldly Go Where No Man Has Gone Before — Charon!
The Resplendent Inflexibility of the Rainbow
The Planet Saturn
The gas giant Saturn is a fascinating place. In addition to its size, impressive ring system, and weather systems, it has over 150 moons and moonlets.
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T-Minus 12 Days to Perihelion, Rosetta's Comet Up Close and in 3D
Curiosity Discovers Mars Rock Like None Before, Sets Drill Campaign
Could We Make Artificial Gravity?
What Are These Strange Scarlet Streaks Spotted on Tethys?
Eris' Moon Dysnomia
Ceres Resembles Saturn's Icy Moons
Faces of the Solar System
Neptune's Moon Triton
Blues for the Second Full Moon of July
What About a Mission to Europa?
