28 August 2015, 03:53 PM ET
If NASA reviewers concur, the ex-Pluto probe will begin 4 maneuvers in late October/early November 2015 to be directed to the icy object 2014 MU69. New Horizon's principal investigator believes it’s the kind of ancient (Kuiper Belt Object) NASA want
21 August 2015, 05:13 PM ET
Learn the latest about Pluto in a live Google Hangout with NASA New Horizons co-lead Richard Benzel, team member Cathy Olkin, and Pluto expert Michael Brown.
19 August 2015, 05:00 AM ET
A planetarium show at New York City's American Museum of Natural History this month gave audience members a vivid look at the New Horizons spacecraft's epic flyby of Pluto.
17 August 2015, 07:00 AM ET
Something mysterious is happening on the surface of Pluto: No matter how much nitrogen the atmosphere releases into space, it's still chock-full of the stuff. New work examines the possible culprits for the stealthy nitrogen resupply.
12 August 2015, 03:29 AM ET
The public can now vote on a shortlist of proposed common names for 32 exoplanets, as well as most of their host stars, in the International Astronomical Union's "NameExoWorlds" competition.
11 August 2015, 07:23 AM ET
Today, the International Astronomical Union will announce the results of its "Name the Exoworlds" campaign, which asked the public to vote on names for 32 alien planets in 20 different star systems.
05 August 2015, 01:00 PM ET
Thirty-two exoplanets will get new names that were chosen in an open vote by the general public. The naming announcement will come next week (Aug. 11) at an international meeting of astronomers.
04 August 2015, 07:30 AM ET
The New Horizons spacecraft's flyby of Pluto on July 14 is revolutionizing researchers' understanding of the faraway dwarf planet. The epic encounter could also help spur future ambitious exploration missions, mission team members say.
03 August 2015, 04:24 PM ET
The Perseid's peak On Aug.13th, and the lack of moonlight creates the possibility of seeing up to 100 meteors per hour. All eight planets are visible and with a telescope, former planet Pluto, Ceres, Vesta, Juno and Pallas can be spotted.
03 August 2015, 04:02 PM ET
The team behind NASA's New Horizons mission, which performed the first-ever Pluto flyby last month, has named some Charon craters after characters from the "Star Wars" and "Star Trek" franchises, including Darth Vader and Capt. James T. Kirk.
03 August 2015, 06:59 AM ET
Astronomers from all over the world are gathering in Honolulu, Hawaii, to discuss the most cutting edge space science around. Members of the public can join the scientists for talks and stargazing events.
29 July 2015, 07:01 AM ET
The Space Launch System megarocket, scheduled to fly for the first time in 2018, will blast unmanned spacecraft toward their targets at unprecedented speeds, dramatically reducing interplanetary travel times, advocates say.
29 July 2015, 07:01 AM ET
On Friday, much of the world will have the opportunity to observe a Blue Moon: A somewhat rare occurrence that doesn't have anything to do with the moon's color.
27 July 2015, 10:57 PM ET
It took almost a decade for NASA’s New Horizons spacecraft to navigate its way across the solar system. Was it worth the wait?
27 July 2015, 05:50 PM ET
Scientists and engineers had to work at breakneck speed to get New Horizons launched during a brief window in January 2006, or the probe's highly anticipated Pluto encounter would have been pushed into 2016 at the earliest.
27 July 2015, 08:52 AM ET
Atmospheric pressure at the surface of the icy dwarf is surprisingly low. Previous Earth-based estimates were more than double New Horizons’ reading.
26 July 2015, 06:00 AM ET
From amazing new views of Pluto's glaciers and mountains to artist's depictions of newfound "Earth cousin" Kepler-452b and photos of sunspots captured from Mars by NASA's Curiosity rover, don't miss these stunning space images.
24 July 2015, 04:03 PM ET
NASA New Horizons' principal investigator Alan Stern and co-investigator Michael Summers break down the new discoveries at a press conference on July 24th, 2015.
24 July 2015, 03:58 PM ET
NASA New Horizons' deputy project scientist Cathy Olkin and co-investigator William McKinnon reveal Pluto composition data at a press conference on July 24th, 2015.
24 July 2015, 12:10 PM ET
NASA's New Horizons probe is about to lift the veil on Pluto. See Space.com's complete coverage of the spacecraft's epic July 14 flyby of the dwarf planet.
24 July 2015, 11:42 AM ET
Four images of the icy dwarf were snapped 280,000 miles (450,000 kilometers) away, which "shows features as small as 1.4 miles (2.2 kilometers)," according to New Horizons' team.
24 July 2015, 11:12 AM ET
This stunning space wallpaper shows Pluto in color as New Horizons scientists combined four images from the spacecraft Long Range Reconnaissance Imager (LORRI) with color data from the Ralph instrument to create this enhanced color global view.
23 July 2015, 06:03 PM ET
Get ready, Plutophiles: More exciting science from the New Horizons mission to Pluto will be announced in a media event today (July 24).
22 July 2015, 02:04 PM ET
Not only has NASA’s New Horizons mission confirmed that Pluto has an extended atmosphere, after its historic flyby on July 14, the spacecraft observed a “cavity” in the solar wind, revealing a long plasma tail reminiscent of a comet’s ion tail.
22 July 2015, 12:00 PM ET
Learn about the discovery of dwarf planet Pluto, its fascinating orbit and atmosphere and the controversy surrounding its planetary status.
22 July 2015, 11:26 AM ET
The guitar player and astrophysicist was at the New Horizons' mission control when the "first 2 by 2 mosaic full-planet picture was downloaded from the probe." He assembled the two images for viewing in a stereoscopic viewer.
21 July 2015, 02:24 PM ET
New photos captured by NASA's New Horizons spacecraft during its historic Pluto flyby last week reveal intriguing new details about Nix and Hydra, two of the dwarf planet's five satellites.
20 July 2015, 07:00 AM ET
New Horizons zoomed within 7,800 miles of Pluto's surface on July 14, capturing the first up-close images of the dwarf planet. Though the probe is now speeding into the depths of the faraway Kuiper Belt, it still has a lot on its plate.
19 July 2015, 08:00 AM ET
The battle over Pluto's status as a planet continues, not only in academic circles but also in my home.
19 July 2015, 03:42 AM ET
NASA's New Horizons probe dominated the news cycle this week, after making a successful close encounter with Pluto, and sending back incredible images and data. Plus, an astronaut mining company launched a tech-testing satellite.
18 July 2015, 09:09 AM ET
The first close-up image of Nix snapped by the New Horizons probe reveal that Pluto's third satellite is only 25 miles (40 kilometers) wide.
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, 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.
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.