04 June 2015, 07:00 AM ET
A campaign called "Dear Pluto" aims to get kids around the country excited ahead of the New Horizons spacecraft's historic flyby of the dwarf planet this summer.
03 June 2015, 01:49 PM ET
The potato-shaped Plutonian moon Nix has been found to have an irregular spin. Its odd shape plays a part in its motion according to NASA. It's not a loner though, one of Pluto's other moons, Hydra, also shares the same characteristics.
03 June 2015, 01:08 PM ET
What will we find when we get to Pluto? NASA's New Horizons' team tells Space.com about the discoveries on the horizon and its far reaching implications.
03 June 2015, 01:01 PM ET
Pluto's moons are even stranger and more intriguing than scientists had imagined, observations by NASA's Hubble Space Telescope reveal.
03 June 2015, 10:22 AM ET
50 years ago, astronaut Ed White became the first American to walk in space. There's more to White's spacewalk than the floating feat alone.
03 June 2015, 07:38 AM ET
The space agency's Low-Density Supersonic Decelerator test vehicle is scheduled to launch from the Hawaiian island of Kauai no earlier than 1:30 p.m. EDT on Monday (June 8), borne aloft by a giant balloon. You can watch the test live here at Space.com.
03 June 2015, 06:09 AM ET
A new study looking at microbes that can survive in the vacuum of space demonstrates the need to consider how such microbes might contaminate environments beyond Earth.
03 June 2015, 06:06 AM ET
Hardy life-forms known as cyanobacteria convert sunlight to energy despite the fact that they often live in shadow. What can the adaptability of these microbes tell scientists about the possibility of life on Mars?
03 June 2015, 06:00 AM ET
The United States first stepped out into the void of space 50 years ago today (June 3). NASA astronaut Ed White left the safety of the Gemini 4 spacecraft equipped with nothing but a spacesuit, a tether and a small gas gun for maneuvering.
02 June 2015, 05:32 PM ET
NASA astronaut Michael Foreman is a spacewalk veteran who knows what it's like to suit up in a one-man spaceship to build space stations. See his view on how spacewalking has evolved since the first outings in 1965.
02 June 2015, 03:35 PM ET
The UAE space agency is developing an orbiter to study the atmosphere of Mars. Project managers explain the mission, which is slated for a 2021 launch.
02 June 2015, 01:34 PM ET
Paving the way for Apollo's missions to the moon, the Gemini program provided much-needed experience for astronauts in space.
02 June 2015, 01:00 PM ET
The May 29 statement by Roscosmos on the May 16 Proton rocket failure confirmed initial suspicions of a third-stage engine issue but otherwise left many questions unanswered about the failure's origin.
02 June 2015, 12:45 PM ET
While NASA does not yet have specific plans for human missions beyond 2021, the agency is in the early stages of developing a sequence of missions in cislunar space in the 2020s to prepare for later missions to Mars.
02 June 2015, 12:30 PM ET
On Sunday, May 31, 2015, NASA's Cassini spacecraft successfully made its latest and final flyby of Hyperion, Saturn's spongy moon. And the view was amazing.
02 June 2015, 12:26 PM ET
When Alexei Leonov stepped out of his Voskhod 2 capsule on March 18, 1965, he became the first spacewalker ever.
02 June 2015, 12:08 PM ET
NASA astronaut Ed White became the first American astronaut to walk in space on June 3, 1965, during the Gemini 4 mission. See photos from White's historic spacewalk.
02 June 2015, 11:34 AM ET
In August 2014, ESA's Rosetta Spacecraft will rendezvous with Comet 67P/Churyumov-Gerasimenko and deploy the Philae lander. See photos from the Rosetta comet probe.
02 June 2015, 11:07 AM ET
NASA is celebrating the first U.S. spacewalk 50 years ago with a new documentary on the history of humans working in their own private human-shaped spacecraft. 'Suit Up' is narrated by actor Jon Cryer and recounts five decades of spacesuit technology.
02 June 2015, 11:00 AM ET
A deluge of new photos by the Rosetta spacecraft shows the haunting alien landscape on the surface of a comet. The images were captured during Rosetta's closest flyby of the space rock.
02 June 2015, 06:14 AM ET
NASA's Low-Density Supersonic Decelerator project will test new technologies for landing future robotic and human Mars missions, and returning large payloads to Earth.
02 June 2015, 06:08 AM ET
An innovative saucer-shaped parachute that NASA scientists have nicknamed their "flying saucer" will have to wait an extra 24 hours before launching on its latest test flight after rough ocean conditions delayed a planned launch today (June 2).
02 June 2015, 06:00 AM ET
NASA Administrator Charles Bolden said he'd like to cut in half the travel time required to send astronauts to Mars. Doing so will require advanced propulsion technologies — including, perhaps, nuclear rockets, Bolden said.
02 June 2015, 01:59 AM ET
In aviation and in space, a drone refers to an unpiloted aircraft or spacecraft.
02 June 2015, 01:20 AM ET
Edwards Air Force Base is a U.S. military facility where cutting-edge aerospace technologies are tested.
01 June 2015, 05:30 PM ET
Borg-like assimilation may not be an interstellar reality, but having a resilient software system is essential to ensure your starship can cope with any scenario in the depths of space.
01 June 2015, 05:00 PM ET
At the 2015 World Science Festival in New York, NASA hosted a stargazing event where the public asked questions of former astronauts, watched robots do ballet, saw astronaut underwear, and learned the truth about Area 51.
01 June 2015, 02:37 PM ET
The Planetary Society's tiny LightSail spacecraft has recovered from an apparent software glitch in orbit and is on track to deploy its solar sail as early as Tuesday (June 2), mission team members say.
01 June 2015, 02:36 PM ET
In 10 seconds, gamma-ray bursts can radiate more energy than the sun will release in 10 billion years. Scientists say new laser instruments set to start up in the near future will have the power to recreate the physics at the heart of these explosions.
01 June 2015, 02:36 PM ET
Astronaut Ed White became the first American to walk in Space on June 3rd, 1965. He flew on the Gemini 4 mission with astronaut Jim McDivitt
01 June 2015, 11:12 AM ET
A quarter century after its founding, the U.S. Astronaut Hall of Fame is being re-launched as a high-tech attraction designed to inspire the next generation of explorers. Heroes and Legends will open at Kennedy Space Center in Florida in 2016.
01 June 2015, 10:34 AM ET
r: Hundreds of people came to see four space shuttle veterans be enshrined into the U.S. Astronaut Hall of Fame — and help celebrate the anniversary of the first astronaut couple. The new inductees were hailed as heroes.