02 July 2014, 05:50 AM ET
The NASA probe (OCO-2) will increase observations of CO2 levels on Earth and deliver data on its sources and "sinks". It launched aboard a United Launch Alliance Delta II rocket from Vandenberg Air Force Station in California on July 2nd, 2014.
01 July 2014, 11:38 PM ET
See photos from the Expedition 40/41 missions to the International Space Station, with images taken by the outpost's crew.
01 July 2014, 06:40 PM ET
Astronomers are studying the feeding habits of a cosmic cannibal to learn how galaxies grow. The Umbrella Galaxy is surrounded by "crumbs" left over from eating a smaller galaxy.
01 July 2014, 03:25 PM ET
Pluto reaches opposition and can be seen with a medium-sized telescope and dark skies. Dwarf planet Ceres and asteroid Vesta will be quite close to one another on the night sky. But each is a tough target.
01 July 2014, 02:17 PM ET
The oldest microbrewery in Ohio is tapping into the state's connection to space history to offer a "bold, yet balanced" tribute to the Buckeye astronauts. Spacewalker American Belgo is the Great Lakes Brewing Co.'s new handcrafted Belgian-style ale.
01 July 2014, 10:54 AM ET
The July night sky is filled with planets to the delight of stargazers and astronomers, but you'll have to know when and where to look to get your summer solar system fix.
01 July 2014, 10:36 AM ET
The Drosophila melanogaster, aka Fruit Fly, shares genes with humans. The Fruit Fly Lab-O1 will fly to Space Station on the 5th SpaceX cargo run.
01 July 2014, 09:48 AM ET
This month's night sky is full of cosmic wonders including planets and other celestial objects galore. Find out what's up in your night sky and how to see it in this Space.com stargazing guide.
01 July 2014, 08:22 AM ET
Images by astronaut Reid Wiseman as he floats above Earth in the International Space Station.
01 July 2014, 07:45 AM ET
Starting in late 2016, Cassini will zip between Saturn and its innermost ring a total of 22 times in a mission phase now known as the "Cassini Grand Finale," which will end when the probe intentionally dives into Saturn's atmosphere in September 2017.
01 July 2014, 07:23 AM ET
A rocket that was set to loft an Earth-gazing satellite to space did not get off its launch pad in California today (July 1) due to a problem with the pad's water system.
01 July 2014, 07:00 AM ET
Cosmic impacts can create novel habitats where life can flourish and preserve the remains of pre-existing life for millions of years, new research suggests.
01 July 2014, 12:51 AM ET
This space wallpaper shows part of the 3000-metre peak of Cerro Armazones blasting away as a step towards levelling the summit in preparation for the construction of the largest optical/infrared telescope in the world.
01 July 2014, 12:36 AM ET
See photos from astronaut Alexander Gerst who is about to take off on a mission to the International Space Station, along with five others.
01 July 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in June 2014.
30 June 2014, 05:47 PM ET
June 21, the day of the northern summer solstice, has much more than 15 hours of sunlight if the extensive twilight periods around dusk and dawn are taken into account.
30 June 2014, 04:27 PM ET
The nonprofit organization that has raised eyebrows with its plans to send people on a one-way mission to Mars is now accepting proposals for scientific payloads that could fly aboard an unmanned mission to the Red Planet in 2018.
30 June 2014, 03:38 PM ET
A new pair of running shoes may help you run a personal best, but a different kind of shoe could help spacefarers stay fit.
30 June 2014, 01:06 PM ET
NASA’s OCO-2 is designed to watch Earth “breathe,” exhaling, then reabsorbing CO2 as the probe maps and re-maps our planet’s surface. Humanity’s rate of carbon-loading the atmosphere is rapidly accelerating.
30 June 2014, 12:00 PM ET
SETI is stepping up its search for alien lifeforms on far off worlds. The Search for Extraterrestrial Intelligence (SETI) program recently announced two new methods to search for signals that could come from life on other planets.
30 June 2014, 11:18 AM ET
The Scorpius constellation is easy to find by its reddish star: Antares (heart of the scorpion). To its west, the M4 “Cat’s Eye” globular cluster can be found. To the east, a group of stars form the Teapot asterism.
30 June 2014, 10:29 AM ET
Saturn and Mars are visible in the evening and Venus and Mercury can be found before sunrise. At the end of the month, the annual Delta Aquarid peaks with 20 meteors per hour. -- Skywatching Guide: http://goo.gl/uETMG9
30 June 2014, 09:23 AM ET
The Low-Density Supersonic Decelerator (LDSD) was tested over Hawaii on June 28th, 2014. It successfully tested the Supersonic Inflatable Aerodynamic Decelerator (SIAD) but its second major test, the Supersonic Disk Sail Parachute, failed to deploy.
30 June 2014, 07:28 AM ET
The space agency's Orbiting Carbon Observatory-2 satellite passed its launch readiness review Sunday, meaning the craft is set to lift off Tuesday from Vandenberg Air Force Base in California at 5:56 a.m. EDT atop a Delta 2 rocket.
30 June 2014, 07:15 AM ET
NASA's Cassini spacecraft marks a big milestone today (June 30) — a decade exploring Saturn and its many moons.
29 June 2014, 09:36 PM ET
The Low-Density Supersonic Decelerator (LDSD) was tested over Hawaii on June 28th, 2014. The vehicle, testing new Mars descent and landing tech, was dropped from a balloon at an altitude of 23 miles and fired its onboard rocket.
29 June 2014, 11:14 AM ET
What was your favorite space news story of the last week?
29 June 2014, 07:50 AM ET
A humanoid robot aboard the International Space Station is inspiring technology that could be useful to both astronauts and people on Earth. Tech developed during the Robonaut program is being adapted into several spinoffs.
28 June 2014, 05:45 PM ET
The space agency launched its Low-Density Supersonic Decelerator test vehicle today from Hawaii, seeing how equipment designed to slow the descent of spacecraft through the Red Planet's atmosphere performs at high speeds in Mars-like conditions.
28 June 2014, 01:47 PM ET
From night-shining clouds to stunning images of the Milky Way, don't miss these amazing objects to watch in the night sky.
28 June 2014, 12:37 PM ET
From the true size of sun's atmosphere to a trio of huge black holes, don't miss these amazing space images of the week for June 28, 2014.
28 June 2014, 07:05 AM ET
Jupiter will end its brilliant year-long showing on Sunday evening (June 29) with a rendezvous with a young and slender crescent moon. Both objects will sit low on the horizon in the twilight sky.