26 August 2014, 06:00 AM ET
NASA's Voyager 2 spacecraft made the first-ever flyby of Neptune on Aug. 25, 1989, zipping by the planet and its moon Triton in quick succession. The historic encounter gave a face to two worlds that until that time had dwelt in depth and shadow.
25 August 2014, 06:06 PM ET
A robotic space probe is due to set down on a comet in November, and now scientists have identified five sites where it could land.
25 August 2014, 05:36 PM ET
Data from instruments aboard a NASA sounding rocket corroborates the claim that about 10 million years ago a cluster of supernova explosions blew a bubble in the interstellar medium. Today Earth resides in that bubble.
25 August 2014, 03:40 PM ET
Expedition 40 astronaut Alexander Gerst said "We flew right through a massive aurora after last week's solar mass ejection." The space station maintains a altitude of between 205 and 270 miles above Earth.
25 August 2014, 03:37 PM ET
New Horizons — which is scheduled to zoom through the Pluto system on July 14, 2015 — passed Neptune's orbit today, 25 years to the day after NASA's Voyager 2 probe executed the first-ever flyby of faraway Neptune and its icy moon Triton.
25 August 2014, 02:01 PM ET
NASA is developing a band of autonomous robots called "swarmies" that use radio waves to communicate with each other and may one day be used to explore the moon or Mars.
25 August 2014, 12:45 PM ET
ESA's Rosetta mission will attempt to land its Philae lander in November 2014 on the surface of comet 67P/Churyumov-Gerasimenko. Measurements of surface temperature, mass and gravity from the probe weighed into the decision.
25 August 2014, 12:00 PM ET
NASA combined data from the Spitzer Space Telescope, Chandra X-Ray Observatory and ESA's XMM-Newton to produce an image of the supernova remnant Puppis A.
25 August 2014, 10:07 AM ET
NASA's Solar Dynamics Observatory captured the M5.6-class flare in multiple wavelengths, while the NASA/ESA Solar and Heliospheric Observatory wide view captured some of the ensuing coronal mass ejection.
25 August 2014, 08:03 AM ET
The moon has a distinctive smell. Ask any Apollo moonwalker about the odiferous nature of the lunar dirt and you'll get the same answer. The moon smells like gunpowder.
24 August 2014, 07:21 PM ET
An M5.6-class flare erupted from sunspot AR2151 on August 24th, 2014. NASA's Solar Dynamics observatory captured a close-up of the fireworks.
24 August 2014, 09:12 AM ET
The launch service provider Arianespace confirmed late Friday (Aug. 22) that two satellites for Europe's Galileo navigation network were released into the wrong orbit after launching aboard a Soyuz rocket from French Guiana.
24 August 2014, 08:07 AM ET
Drawing a crowd for a series of lectures on astronomy isn't easy — unless, of course, you have alcohol on your side.
23 August 2014, 11:55 PM ET
What was your favorite space news story of the last week?
23 August 2014, 02:20 PM ET
From dramatic star formation to Russia's next-generation rocket, don't miss these amazing space images of the week for Aug. 23, 2014.
23 August 2014, 12:54 PM ET
From Venus and Jupiter taking center stage, to spectacular auroras, don't miss these amazing objects to watch in the night sky.
23 August 2014, 11:44 AM ET
The private spaceflight company's Falcon 9 reusable (F9R) rocket was forced to self-destruct after an anomaly during a test flight on Friday April 21st, 2014. They are preparing a thorough investigation into Friday's mishap.
23 August 2014, 10:56 AM ET
The Galileo constellation will consist of 30 satellites (First two failed to reach correct orbit - see the launch).
The European Space Agency hopes to launch the satellites once every 3 to 4 months.
23 August 2014, 10:34 AM ET
A Soyuz ST-B rocket blasted off from the European Spaceport in Kourou, French Guiana with a payload of two Full Operational Capability (FOC) satellites for the Galileo constellation.
23 August 2014, 09:54 AM ET
The Mars Science Laboratory has survived through the harsh conditions on the Red Planet, but it has not come through unscathed. Buzz60's Patrick Jones reports.
23 August 2014, 09:28 AM ET
A photo from NASA's Curiosity rover on Mars set the Internet abuzz this week with claims that the robot had found a "thigh bone" on the Red Planet. But not so fast. That so-called bone? Just a weathered Martian rock, NASA officials say.
23 August 2014, 09:20 AM ET
NASA's Mars rover Curiosity is beaming home amazing photos of the Red Planet.
23 August 2014, 08:20 AM ET
The northern lights illuminated Arctic skies earlier this week in a stunning display that could even be appreciated by astronauts living on the International Space Station.
23 August 2014, 07:52 AM ET
A SpaceX F9R reusable rocket protoype exploded over McGregor, Texas, on Friday (Aug. 22) during a complicated test flight. See video of debris falling from the sky here.
22 August 2014, 10:26 PM ET
The private space company's Falcon 9 Reusable (F9R) rocket exploded on August 22nd, 2014 during a test flight in McGregor, Texas. Footage of the wreckage falling back to the surface after the explosion was uploaded to Youtube by Pat Hykkonen.
22 August 2014, 07:57 PM ET
Sunspot AR2149 erupted with an M3-class flare on August 21st, 2014. NASA's Solar Dynamics Observatory captured the fireworks.
22 August 2014, 06:31 PM ET
NASA astronaut Steven Nagel, who flew on four space shuttle missions, died on Thursday, Aug. 21. He was 67. Nagel died after a long battle with cancer, the Association of Space Explorers reported.
22 August 2014, 05:50 PM ET
One of the smallest constellations in the Northern Hemisphere is reaching its highest point in the sky at around midnight local daylight time this week.
22 August 2014, 04:46 PM ET
The three brightest objects in the night sky are set to create a spectacular triangle Saturday (Aug. 23) morning, and weather permitting, early-rising skywatchers should be able to catch the celestial action.
22 August 2014, 04:12 PM ET
This week, aerospace firm Northrop Grumman released artwork depicting its conception of the XS-1 space plane, which it's designing under a $3.9 million contract from the U.S. Defense Advanced Research Projects Agency (DARPA).
22 August 2014, 03:07 PM ET
The U.S. military is developing the XS-1 Experimental Spaceplane to launch space missions faster and cheaper than ever before. See photos and images of the DARPA-led XS-1 space plane project in this Space.com gallery.
22 August 2014, 02:50 PM ET
Early-rising stargazers were treated to an amazing view of the two brightest planets closely aligned in the morning sky Monday (Aug. 18).