25 July 2014, 04:04 PM ET
From a look again at the first footprints on the moon to the ISS view of Gaza, don't miss these amazing space images of the week for July 26, 2014.
25 July 2014, 03:37 PM ET
This NASA-produced video combines a greatest hits retrospective of past spaceflight with suggestions of humans-to-asteroid and Mars missions, plus animation of a yet unbuilt heavy lift launch vehicle.
25 July 2014, 03:13 PM ET
A Russian space capsule carrying a package of biological and materials research specimens, including geckos and plant seeds, has stopped responding to commands from Earth, the Russian space agency announced Thursday (July 24).
25 July 2014, 12:30 PM ET
German astronaut Alexander Gerst reflected on the grief he felt as he saw signs of the deadly Israel-Gaza conflict from the International Space Station.
25 July 2014, 07:25 AM ET
As the world celebrates the 45th anniversary of Apollo 11's giant leap to the moon, some people are eyeing the celestial body's bounty of resources. But it's unclear at the moment who is allowed to extract and profit from the moon's resources.
25 July 2014, 07:00 AM ET
Is the moon made of green cheese? Is it a hollow spaceship? Apollo 11 helped put these and other ideas to rest.
24 July 2014, 01:18 PM ET
It's commonplace to practice spacewalks underwater, but the latest crew living in an underwater lab plans to introduce a twist: a 10-minute communications delay with mission control.
24 July 2014, 10:20 AM ET
The probe is 125 times smaller than its target, comet 67P/Churyumov–Gerasimenko. Rosetta will come within 62 miles of the surface in the first week of August 2014.
24 July 2014, 08:20 AM ET
NASA's Apollo 11 crew returned to Earth as heroes at the end of their successful manned moon landing mission. See how Neil Armstrong, Buzz Aldrin and Michael Collins splashed down in the Pacific Ocean and returned to the United States.
24 July 2014, 08:00 AM ET
"One small step for man, one giant leap for mankind." That sentence, uttered by NASA astronaut Neil Armstrong from the surface of the moon 45 years ago, signaled the dawn of a new age.
24 July 2014, 07:22 AM ET
While the Apollo 11 landing was on the cutting-edge of technology in 1969, today it's a demonstration of how much could be accomplished with so little.
23 July 2014, 09:32 PM ET
The United Arab Emirates has announced plans to launch a mission to Mars by 2021. A first for the Arab world, the mission and accompanying Space Agency are a big deal for the UAE – scientifically and politically.
23 July 2014, 05:59 PM ET
Russia launched a robotic ship on an express delivery run to the International Space Station today (July 23) to bring fresh supplies to the crewmembers on the orbiting outpost.
23 July 2014, 04:31 PM ET
As fighting continues in Israel and Gaza, astronauts living aboard the International Space Station can see signs of the deadly conflict from space.
23 July 2014, 03:29 PM ET
Hubble Space Telescope scientists are going to explain how they use the huge eye in the sky during a live chat Thursday (July 24).
23 July 2014, 02:09 PM ET
Photographs taken by ISS astronaut Alexander Gerst show the waging war on the Gaza strip and Israel. Gerst says "My saddest photo yet. From the International Space Station we can actually see explosions and rockets flying over Gaza and Israel."
23 July 2014, 01:08 PM ET
See photos from the European Space Agency's Automated Transfer Vehicle 5 (ATV-5) mission to the International Space Station in this Space.com gallery. ATV-5 is Europe's fifth and final planned ATV mission.
23 July 2014, 12:34 PM ET
U.S. President Barack Obama welcomed Buzz Aldrin and Michael Collin, the two surviving Apollo 11 astronauts, to the White House yesterday (July 22) to celebrate the 45th anniversary of the first moon landing.
23 July 2014, 10:20 AM ET
The agency's Chandra X-ray Observatory — one of NASA's 'Great Observatories,' along with the Hubble and Spitzer space telescopes and the now-retired Compton Gamma Ray Observatory — launched aboard the space shuttle Columbia on July 23, 1999.
23 July 2014, 07:41 AM ET
Apollo 11 astronauts Neil Armstrong, Buzz Aldrin and Michael Collins spent their last full day in space before landing gearing up for their Earth return. See how here.
23 July 2014, 07:24 AM ET
In the four decades since Apollo, no humans have landed on the moon. While NASA has no concrete plans to send astronauts back, other nations are talking about going there.
23 July 2014, 06:46 AM ET
Scientists have found hundreds of small pits on the lunar surface that could provide shelter to astronauts exploring the moon. Some of the pits, which are primarily located inside larger craters on the moon, are nearly 3,000 feet wide.
22 July 2014, 05:50 PM ET
NASA's New Horizons' mission, which blasted off in 2006, will become the first spacecraft to orbit Pluto in July 2015. The flyby will give researchers their first good look at the distant, frigid dwarf planet.
22 July 2014, 04:28 PM ET
The video, which SpaceX released today (July 22), shows a Falcon 9 first stage returning to Earth in a controlled fashion after helping launch six commercial satellites on July 14 for the firm Orbcomm.
22 July 2014, 03:59 PM ET
The private space company's Falcon 9 re-usable rocket technology was tested on its last flight on July 14th, 2014. Engine restart, landing legs and ocean touchdown at near zero velocity was recorded. See the launch: http://goo.gl/v8e5MS
22 July 2014, 02:20 PM ET
Papers from the National Archives record the words President Nixon would have spoken had the Apollo 11 astronauts been unable to return to Earth.
22 July 2014, 11:41 AM ET
Engineers inspect a boilerplate Mercury capsule.
22 July 2014, 07:47 AM ET
On July 22, 1969, the three men on NASA's Apollo 11 mission were in the homestretch of their historic moon voyage. See how they fired the engines on their spacecraft.
22 July 2014, 07:00 AM ET
The second Hawaii Space Exploration Analog and Simulation mission, known as Hi-SEAS 2, wraps up on Friday (July 25), ending four months of simulated Red Planet exploration on Hawaii's Mauna Loa volcano.
21 July 2014, 05:05 PM ET
Actor Morgan Freeman grilled NASA astronauts on the International Space Station about how their work can get humans to Mars someday.
21 July 2014, 04:09 PM ET
NASA honored the memory of Apollo 11 commander Neil Armstrong Monday (July 21), naming the Operations and Checkout building at the Kennedy Space Center in Florida after the first man on the moon.
21 July 2014, 03:40 PM ET
NASA's Apollo 11 moon landing was a human spaceflight feat, but also a dangerous journey. See some of the scariest moments of first manned moon landing as described by space historian and science writer Rod Pyle, author of 'Destination Moon.'