08 July 2015, 02:24 PM ET
A new image taken by New Horizons yesterday (July 7), when the probe was less than 5 million miles (8 million kilometers) from Pluto, shows a large, heart-shaped feature on the dwarf planet's surface.
08 July 2015, 07:01 AM ET
In anticipation of the New Horizons flyby of Pluto on July 14, this sky chart can help you find Pluto in the night sky (with the assistance of a high power telescope).
07 July 2015, 05:09 PM ET
New Horizons team members submitted the names generated by the "Our Pluto" campaign to the International Astronomical Union (IAU) today (July 7), one week before the probe makes history's first flyby of the faraway dwarf planet.
07 July 2015, 03:18 PM ET
They are three words that, after next week, will never be used to describe Pluto again, and they are about to witness their own expiration: "Not yet explored." The phrase appears on a 1991 29-cent U.S. stamp flying on New Horizons.
07 July 2015, 07:30 AM ET
With less than nine days to go in its nine-year journey, NASA's New Horizons probe is set to take the first-ever up-close images of the dwarf planet Pluto. And as those images are received on Earth, they are set to air on the Science Channel.
06 July 2015, 05:47 PM ET
The images, which New Horizons captured Wednesday (July 1) and Friday (July 3), reveal a great deal of variation and complexity across Pluto's surface — including four large dark patches near the equator whose origin and composition remain mysterious.
06 July 2015, 04:42 PM ET
Nearly 30 observations were lost due to a glitch during a system update on July 4th, 2015. NASA principal investigator Alan Stern lists the data that will not be retrieved from July 4th until July 7th.
06 July 2015, 10:21 AM ET
Black and white imagery from the NASA probe's LORRI instrument is combined with color data from the Ralph instrument to create the first color time-lapse of the Pluto-Charon orbital "dance". Also, the New Horizons team released an artist impression
06 July 2015, 01:33 AM ET
New Horizons' handlers say the probe should be back to normal science operations by Tuesday (July 7), exactly one week before it performs the first-ever flyby of Pluto.
05 July 2015, 04:37 AM ET
The probe's handlers lost contact with New Horizons at 1:54 p.m. EDT (1754 GMT) Saturday (July 4) but were able to restore communications at 3:15 p.m. EDT (1915 GMT).
02 July 2015, 04:12 PM ET
The constellation Sagittarius looks like a teapot and will be spew Milky Way 'steam' (aka center of our galaxy) this month. The area is frothy with nebulae, star clusters and, if you have a really good telescope, Pluto.
02 July 2015, 12:48 PM ET
The rock band Styx toured the control center for NASA's New Horizons mission to Pluto, and learned more about Pluto's smallest moon, also named Styx.
02 July 2015, 10:54 AM ET
The latest New Horizons' data pouring into NASA servers on Earth has returned color and black & white images of Pluto and Charon and more. The strange dark spots, seen in the approximate true color view, are oddly very similar.
02 July 2015, 07:30 AM ET
The New Horizons probe has spotted no signs of rings or additional moons in the Pluto system, so the spacecraft will remain on its original trajectory when it zooms past the dwarf planet on July 14, NASA officials announced Wednesday (July 2).
02 July 2015, 07:00 AM ET
With less than two weeks until its close encounter with Pluto, NASA's New Horizon's probe has detected methane ice on the surface of the dwarf planet. Methane was first discovered on Pluto in 1976.
01 July 2015, 11:15 AM ET
Imagery taken between 28 May and 25 June 2015 from NASA New Horizons' LORRI instrument reveals the best look yet of the icy double dwarf planet Pluto-Charon.
01 July 2015, 07:01 AM ET
NASA's New Horizons probe will cruise within 7,800 miles (12,500 kilometers) of Pluto's surface on July 14, capturing the first-ever good looks at the frigid, faraway and mysterious world.
30 June 2015, 05:07 PM ET
Pluto and its largest moon, Charon, posed for a solemn portrait taken by NASA's New Horizon's probe, which is only two weeks away from its close encounter with the dwarf planet.
24 June 2015, 06:00 PM ET
In anticipation of the New Horizons probe making a close flyby of Pluto on July 14, this sky chart can help you spot the dwarf planet in the night sky (with the assistance of a high-power telescope).
24 June 2015, 05:12 PM ET
Singer-songwriter Craig Werth has written a song called "Oh Pluto" to highlight and celebrate NASA's New Horizons mission, which will give the world its first up-close looks at the dwarf planet during a highly anticipated flyby on July 14.
23 June 2015, 05:05 PM ET
NASA's New Horizons spacecraft has spotted a strange dark patch at the pole of Pluto's big moon Charon, further whetting researchers' appetites ahead of the probe's epic flyby of the dwarf planet system next month.
23 June 2015, 09:06 AM ET
Images captured between May 29th and June 18th, 2015 resolve patches on the icy dwarf's surface and suggest that one of Charon’s poles might be significantly less bright than the bulk of the moon.
19 June 2015, 09:59 PM ET
In new imagery of the dwarf planet taken from May 29th to June 3rd, 2015, its "near-true color" is revealed. Charon, also in view, is grey. The images are presented in a 'barycentric view,' with both Pluto and Charon in motion, and a 'Pluto-centric'
18 June 2015, 01:11 AM ET
The International Astronomical Union is an organization of professional astronomers and the recognized authority for assigning names to celestial objects.
12 June 2015, 03:11 PM ET
The many "faces" of Pluto are visible in new images by NASA's New Horizons probe, which is only one month away from the first-ever close encounter with the dwarf planet.
11 June 2015, 05:01 PM ET
The NASA probe's LORRI instrument snapped new imagery of the double planet from May 28th until June 3rd, 2015. The ice dwarfs' features are starting to come into focus.
09 June 2015, 06:18 AM ET
A new NASA Web tool called "Pluto Time" lets users experience the light levels that prevail at noon on the dwarf planet. Users enter their location, and Pluto Time tells them the next available opportunity to soak up some Plutonian rays.
07 June 2015, 10:00 AM ET
Scientists announced surprising discoveries about Pluto's moons, a spacecraft beamed home amazing images taken from a comet's surface, and the United Arab Emirates outlined its bold Mars plans. Here's a look at Space.com's top stories of the week.
07 June 2015, 09:31 AM ET
From up-close looks at Saturn's "spongy" moon Hyperion to photos of the first NASA spacewalk, which occurred 50 years ago this week, don't miss these amazing space images.
05 June 2015, 07:50 AM ET
A rundown of some of the most common misconceptions about the dwarf planet, which will be imaged in detail for the first time during the July 14 flyby of NASA's New Horizons spacecraft.
04 June 2015, 03:39 PM ET
Throw out your textbooks — there are 10 planets in our solar system.
04 June 2015, 01:40 PM ET
Dwarf planet Ceres and asteroid Pallas, discovered in 1801 and 1802, are visible in the night sky in June. Ceres was originally classified as a planet, then an asteroid, and finally a dwarf planet after further observation.
04 June 2015, 07:00 AM ET
The path to Pluto this summer for NASA's New Horizons spacecraft should be relatively smooth and safe, a new and improved portrait of the dwarf planet's moons suggests.
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, 01:01 PM ET
Pluto's moons are even stranger and more intriguing than scientists had imagined, observations by NASA's Hubble Space Telescope reveal.
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.