17 July 2015, 06:14 PM ET
Dawn began spiraling down to its third Ceres science orbit on June 30 but experienced a problem almost immediately and went into a protective "safe mode." The mission team has now determined what happened and cleared Dawn to return to work.
17 July 2015, 03:43 PM ET
The engimatic flat region, which researchers have dubbed "Sputnik Planum," is broken into cell-like blocks and harbors mysterious pitted terrain and dark streaks of material that may have been deposited by Plutonian wind.
17 July 2015, 12:30 PM ET
Planetary Resources has launched its first spacebound test of asteroid mining technology on July 16, beginning a 90-day mission to test vital technologies.
17 July 2015, 07:00 AM ET
Hardware developed for the race to the moon was used to foster collaboration between the two countries.
17 July 2015, 07:00 AM ET
The new images, which New Horizons captured during its historic flyby of Pluto on Tuesday (July 14), will be released in concert with a news conference that starts today at 1 p.m. EDT. You can follow it live here on Space.com, courtesy of NASA TV.
17 July 2015, 06:00 AM ET
NASA's Juno probe is now less than one year away from its rendezvous with Jupiter. Juno, which launched in August 2011, is scheduled to slip into orbit around the gas giant on July 4, 2016.
17 July 2015, 06:00 AM ET
On July 17, 1975, NASA astronauts aboard an Apollo spacecraft linked up with cosmonauts in their Soyuz capsule. The Apollo-Soyuz Test Project meetup showed that two different space vehicles could dock in orbit, but it had diplomatic consequences as well.
16 July 2015, 05:05 PM ET
As NASA's New Horizons flew past Pluto on July 14, it had aboard some of the ashes of the astronomer who discovered the planet in 1930. Now, the mission team has further honored the late Clyde Tombaugh by giving Pluto's heart-shaped region his name.
16 July 2015, 02:39 PM ET
A newly released Charon photo, which was taken by NASA's New Horizons probe during its epic Pluto flyby Tuesday (July 14), reveals a mountain rising out of a big hole on the 750-mile-wide (1,200 kilometers) moon's surface.
16 July 2015, 01:10 PM ET
After more than two weeks of silence, the European Philae lander on the surface of a comet phoned home once again this month in a long-distance call routed through its Rosetta mothership.
16 July 2015, 08:26 AM ET
The U.S. Air Force successfully launched the 10th satellite in its current-generation series of positioning, navigation and timing satellite from Cape Canaveral Air Force Station in Florida aboard a United Launch Alliance Atlas 5 rocket July 15.
16 July 2015, 07:00 AM ET
New photos by NASA's New Horizons spacecraft show that both the dwarf planet and its biggest moon, Charon, have been geologically active in the recent past. Scientists aren't sure what processes have powered this surprising activity.
15 July 2015, 09:44 PM ET
President Barack Obama fired off a congratulatory tweet Tuesday (July 14) celebrating the first-ever flyby of Pluto, which NASA's New Horizons spacecraft performed earlier that day.
15 July 2015, 08:03 PM ET
The newest images of Pluto and its moons, taken by NASA's New Horizons probe, revealed mountains that compete with the Rockies, chasms that dwarf the Grand Canyon and swarms of other mysteries to investigate.
15 July 2015, 06:00 PM ET
NASA has just funded seven far-out space-exploration concepts, including a submarine that would explore the hydrocarbon seas of Saturn's huge moon Titan, an origami energy reflector and rapid space transit with an electric sail.
15 July 2015, 05:37 PM ET
The first close-up photo of Pluto revealed a mountain range rising 11,000 feet (3,500 meters) into Pluto's sky, along with a surface just 100 million years old at the most. A view of the dwarf planet's big moon Charon didn't disappoint, either.
15 July 2015, 02:56 PM ET
Space.com's Calla Cofield talks to NASA's planetary science division director Jim Green about the impact of the New Horizons' mission and whether any new missions to the icy dwarf are planned.
15 July 2015, 10:40 AM ET
"Chasing Pluto," a production of PBS' NOVA science series, premieres tonight at 9 p.m. EDT/8 p.m. CDT. The documentary provides an in-depth, behind-the-scenes look at the New Horizons mission and its flyby of the dwarf planet.
15 July 2015, 07:15 AM ET
NASA's New Horizons probe performed the first-ever close flyby of Pluto early yesterday morning (July 14). Here's what scientists, government officials and other interested parties had to say about the historic event.
15 July 2015, 07:10 AM ET
This morning, NASA's New Horizons probe will beam home the first haul of photos collected during Tuesday morning's Pluto flyby. NASA plans to unveil some of the best images during a news conference today at 3 p.m. EDT; watch it live on Space.com.
14 July 2015, 09:12 PM ET
Telemetry and data has been received as planned on the evening of July 14th, 2015. The Mission Operations Manager (MOM) Alice Bowman delivers the update.
14 July 2015, 09:05 PM ET
NASA's New Horizons spacecraft has sent a status update home to its handlers here on Earth, indicating that the probe survived its historic encounter with Pluto this morning (July 14) — and that reams of amazing data should be on the way soon.
14 July 2015, 05:26 PM ET
NASA's New Horizons spacecraft performed the first-ever close flyby of Pluto this morning (July 14). Space.com managing editor Tariq Malik tells us what it was like to be at mission control for the historic moment.
14 July 2015, 05:00 PM ET
The surfaces of Pluto and Charon don't actually look like the inside of a kaleidoscope, but colorful new images reveal materials on the surface and give hints at the history of these two far-out objects.
14 July 2015, 04:06 PM ET
As NASA's New Horizons team members wait in anticipation for the spacecraft to send home its highly anticipated close-approach images of Pluto, they'll be making sure not to jinx the mission.
14 July 2015, 04:01 PM ET
Pluto, Charon, and other large objects in the outer reaches of the solar system could boast icy plumes, and NASA's New Horizons mission could find them.
14 July 2015, 02:47 PM ET
From one icon of science to another: in a video message posted this morning (July 14), physicist Stephen Hawking congratulated the New Horizons team on the spacecraft's flyby of Pluto.
14 July 2015, 01:16 PM ET
Science and distance conspire to create a long silence from NASA's New Horizons spacecraft, which flew by Pluto this morning (July 14).
14 July 2015, 01:11 PM ET
Space.com managing editor Tariq Malik is thrilled for the upcoming Pluto flyby of New Horizons, and will be covering it live on social media for us throughout the encounter. See his posts here as they happen.
14 July 2015, 11:20 AM ET
Breathtaking detail of the surface of Pluto was revealed in an image taken just before the New Horizons spacecraft made its closest approach to the dwarf planet this morning (July 14).
14 July 2015, 10:20 AM ET
Titan, one of the most potentially habitable bodies in the solar system, may have gone through snowball phases that resemble Pluto today.
14 July 2015, 09:17 AM ET
NASA's John Grunsfeld, Alan Stern and Alice Bowman talk at press conference less than an hour after the the probe's closest approach to the icy dwarf. They provide updates on when we should expect new images.