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.
01 June 2015, 09:08 AM ET
Engineers at Aerojet Rocketdyne assemble the ‘RS-25’ a.k.a. Shuttle Main Engine engine at NASA's Stennis Space Center. First fired in May of 1975, four such legacy-design motors will power the core of the Space Launch System.
01 June 2015, 07:40 AM ET
NASA has awarded Boeing with the first order for a commercial crew change flight to the International Space Station once the company's new CST-100 space taxi is ready for manned flights in 2017.
01 June 2015, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in May 2014.
31 May 2015, 07:00 AM ET
NASA announced the science instruments for its mission to Europa, SpaceX was certified for U.S. military launches and a tiny solar-sailing spacecraft suffered a glitch in orbit. Here's a look at Space.com's top stories of the week.
30 May 2015, 11:13 AM ET
From a nebula's crimson heart to a dragon's-eye view, don't miss these amazing space images of the week for May 31, 2015.
30 May 2015, 08:58 AM ET
The Earth's precession is captured in stunning detail in this image by astrophotographer Miguel Claro from inside the Mourão Castle, in the Dark Sky Alqueva Reserve.
30 May 2015, 07:30 AM ET
At the World Science Festival in New York, an interactive installation provides an auditory encounter with the NASA satellites that study the Earth.
30 May 2015, 07:30 AM ET
A giant eruption from the sun that scientists thought would hit Earth in 2014 missed because the sun's magnetic field channeled it away from the planet in an unexpected way, researchers say.
30 May 2015, 04:53 AM ET
North American Aerospace Defense Command (NORAD) is a joint military organization of the United States and Canada that looks for threats in aerospace, patrols the skies for missiles and tracks the whereabouts of Santa Claus.
29 May 2015, 07:48 PM ET
Hercules, Boötes (Herdsman), and Draco (Dragon) constellations are highlights for sky gazers in June. Also, Venus and Jupiter are bright in the evening sky and Jupiter rings are viewable with binoculars in the southern sky.
29 May 2015, 04:37 PM ET
Europe’s Ariane 5 rocket on May 27 successfully delivered two direct-broadcast television satellites into transfer orbit for DirecTV in the vehicle’s 65th consecutive success and the second of six missions planned for 2015.
29 May 2015, 03:39 PM ET
The U.S. Air Force's fourth mystery mission of its X-37B space plane launches on May 20, 2015. How long the mission will last, and its exact purpose, is a mystery. See photos from the mission here.
29 May 2015, 03:26 PM ET
Virgin Galactic's second SpaceShipTwo passenger ship is coming together, with the commercial spaceliner lowering its landing gear for the first time last week.
29 May 2015, 02:58 PM ET
Astrophotographer Giuseppe Petricca took this image of the ISS, the Moon, Venus, Mars, Mercury and the Leaning Tower of Pisa from Pisa, Tuscany, Italy.
29 May 2015, 02:30 PM ET
The Hubble Space Telescope has been wowing space fans with amazing cosmic views for 25 years, but only because of repairs and upgrades by visiting astronauts. See the tools astronauts used to fix and repair the Hubble Space Telescope.
29 May 2015, 02:00 PM ET
NASA engineers talk about the specialized tools they developed to keep Hubble running for a quarter of a decade.
29 May 2015, 12:00 PM ET
Find out what's up in your night sky during June 2015 and how to see it in this Space.com stargazing guide.
29 May 2015, 11:44 AM ET
Disney's epic "Tomorrowland" features space technology done in steampunk style, and brings in early 20th century science heavyweights Jules Verne, Thomas Edison, Nikola Tesla and Gustave Eiffel.
29 May 2015, 11:21 AM ET
A new NASA image hints at the complex factors that encourage giant plankton blooms in the North Atlantic.
29 May 2015, 11:00 AM ET
See what's up in the night sky for June 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software.
29 May 2015, 10:50 AM ET
A gallery of Ed Belbruno's most recent art inspirations, the muse for mathematical theories yet to come.
29 May 2015, 10:16 AM ET
The European Space Agency probe has returned stunning imagery of oddly shaped comet 67P/Churyumov-Gerasimenko. A University of Bern astrophysicist has reconstructed the process in which this comet (and others like it) may have formed.
29 May 2015, 07:00 AM ET
Explosive geysers of material that shoot away from black holes at nearly the speed of light seem to form more often in galaxies that are the product of two galaxies merging together, according to a new study using data from the Hubble Space Telescope.
29 May 2015, 07:00 AM ET
Details about the X-37B spacecraft's current mission — known as Orbital Test Vehicle-4, or OTV-4 — are classified, but the satellite trackers' new observations are shedding some light on the vehicle's
29 May 2015, 03:23 AM ET
How can the complex nature of the earliest universe, or universes, be explained?
28 May 2015, 07:34 PM ET
A new photo from NASA's Dawn spacecraft shows the battered surface of the dwarf planet Ceres in unprecedented detail. Dawn captured the image on May 23, when the probe was just 3,200 miles (5,100 kilometers) from Ceres.
28 May 2015, 06:45 PM ET
New Horizons' hunt for new moons, rings and other potential hazards near Pluto has turned up nothing so far.
28 May 2015, 05:45 PM ET
NASA has awarded prize money to five members of the public for their ideas about how to limit astronauts' radiation exposure during journeys through deep space.
28 May 2015, 05:25 PM ET
Amateur astronomers are interested in seeing Pluto with their own telescopes, and this is what we will discuss here. Pluto is at present around 14th magnitude, requiring a telescope with at least 8 inches (200mm) aperture.