Science & Astronomy Archive
14 July 2015, 05:00 AM ET
The New Horizons probe's epic flyby of Pluto today (July 14) comes on a very special date in the history of space exploration: Exactly 50 years ago today, NASA's Mariner 4 spacecraft made the first flyby of Mars.
14 July 2015, 04:39 AM ET
Today, July 14, 2015, NASA will make history when its New Horizons spacecraft becomes the first mission ever to fly by Pluto, and the folks at Google are celebrating with an appropriately celebratory Google doodle.
13 July 2015, 06:17 PM ET
Hold on to your butts. On Tuesday, NASA will give Pluto its first close-up since the dwarf planet's discovery 85 years ago, and you can follow it all online, but be warned: You'll have to rise early and stay up late.
13 July 2015, 05:39 PM ET
A collaboration between the American Museum of Natural History and Sweden's Linkoping University animates NASA's New Horizons closest encounter with the Pluto-Charon system. The OpenSpace software used can be obtained here: openspace.itn.liu.se.
13 July 2015, 02:20 PM ET
NASA's New Horizons spacecraft is still a day away from its Pluto flyby, but has revealed that the dwarf planet is larger than thought and has a polar ice cap.
13 July 2015, 12:07 PM ET
Investigation of imagery and other data from the approaching probe reveal Pluto to be larger than previous estimates. Principal investigator Alan Stern explains the implications on ice composition, rock estimates, and atmospheric composition.
13 July 2015, 06:00 AM ET
On Tuesday morning (July 14) — nine and a half years after launching, and a quarter-century after its mission began to take shape — NASA's New Horizons probe will perform history's first flyby of Pluto.
13 July 2015, 06:00 AM ET
The New Horizons probe's flyby of Pluto on Tuesday (July 14) will wrap up the initial reconnaissance of the solar system, an endeavor that began more than 50 years ago.
13 July 2015, 06:00 AM ET
Pluto — the once (and to some people, forever) ninth planet of the solar system — gets a lot of love from the general public. What makes this icy outlier so loveable?
12 July 2015, 10:48 PM ET
Since recovering from a July 4th, 2015 glitch, New Horizons' has sent back some incredible imagery which highlight possible craters, cliffs and chasms on the icy dwarf and its moon.
12 July 2015, 10:38 PM ET
NASA's New Horizons spacecraft has spotted multiple craters and canyons on Pluto's big moon Charon, including one chasm that appears to be longer and deeper than Arizona's Grand Canyon, mission team members said.
12 July 2015, 09:00 AM ET
A history of attempts to study Pluto over the last 100 years, from its role as the mysterious "Planet X" to its upcoming New Horizons close-up.
12 July 2015, 02:47 AM ET
NASA's New Horizons probe captured amazing images of Pluto, scientists revealed details about a proposed superpowerful space telescope and NASA announced its first four commercial-crew astronauts. Here are Space.com's top stories of the week.
12 July 2015, 02:43 AM ET
New Horizons imaged the patches on Saturday (July 11), from a distance of 2.5 million miles (4 million kilometers). Charon. New Horizons won't be able to see the dark spots when it zooms through the Pluto system on July 14.
11 July 2015, 01:14 PM ET
A new image, which NASA's New Horizons probe took Thursday (July 9) from a distance of 3.3 million miles (5.4 million kilometers), reveals polygonal features and a 1,000-mile-long (1,600 km) band of patterned, dark-and-light terrain.
11 July 2015, 07:00 AM ET
Researchers in an Arizona ice lab spend long hours coaxing crystal-clear ice from mixes of methane, nitrogen and even carbon monoxide — and now, with data from the New Horizons mission to Pluto arriving soon, the ice lab's time has come.
11 July 2015, 07:00 AM ET
While New Horizons will be all by its lonesome while it speeds past Pluto July 14, a fleet of spacecraft closer to home will also be watching the dwarf planet.
11 July 2015, 01:16 AM ET
From gorgeous views of Pluto and its largest moon Charon to an amazing shot of the International Space Station crossing the moon's face, don't miss these amazing space images.
10 July 2015, 02:47 PM ET
The new images — which were taken Wednesday from a distance of 3.7 million miles — show that Pluto and Charon are very different bodies, though they circle a common center of gravity and are separated by a mere 12,200 miles, NASA officials said.
10 July 2015, 01:20 PM ET
A new image of the sun shows a cornucopia of X-ray and ultraviolet colors erupting from our nearest star. Our sun is in an active period with plenty of sunspots and flares, as it leaves the peak of a cycle that takes place every 11 years.
10 July 2015, 05:00 AM ET
The building blocks to create another Earth are found at solar systems across our Milky Way Galaxy, a new study reveals.
10 July 2015, 04:45 AM ET
In recent years, planetary scientists have begun to suggest that Pluto and its moons might serve as an analogue to planets orbiting double star systems — like the fictional planet Tatooine, home of Luke Skywalker.
09 July 2015, 05:45 PM ET
In a collision of cosmic proportions, a new video show two chunks of material smashed together inside a jet emanating from a monster black hole. The event was captured in a time lapse video taken by the Hubble Space Telescope over 20 years.
09 July 2015, 05:17 PM ET
Learn more about NASA's New Horizons mission, which performed history's first flyby of the Pluto system on July 14, 2015.
09 July 2015, 02:01 PM ET
A newfound giant black hole nearly as massive as 7 billion suns is dozens of times larger than astronomers expected given its host galaxy's size, researchers say. The finding may call most current models of galaxy formation into question.
09 July 2015, 01:45 PM ET
Hubble Space Telescope imagery of galaxy ESO 381-12 (a.k.a. PGC 4287) may show the after effects of a galactic merger. Telltale 'shells' of gas and dust could be results of "shock waves through its structure much like ripples in a pond."
09 July 2015, 11:01 AM ET
Pluto may only be the beginning of NASA New Horizons' exploration of the Edgeworth-Kuiper Belt.
09 July 2015, 07:00 AM ET
NASA has released a video called "The Wait" to call further attention to the New Horizons spacecraft's epic flyby of Pluto on July 14.
09 July 2015, 07:00 AM ET
The New Horizons probe careening toward Pluto has officially begun its sequence of science observations for its closest approach of the dwarf planet, on July 14.
08 July 2015, 10:04 PM ET
The moon doesn’t have the winds, rivers or plate tectonics capable of erasing these marks of ancient impacts.
08 July 2015, 08:00 PM ET
Though the New Horizons spacecraft's Pluto flyby doesn't occur until July 14, great images from the probe are already rolling in. Here, Space.com highlights some of New Horizons' best Pluto pics from the close encounter's home stretch.
08 July 2015, 05:23 PM ET
"Mission Pluto" will air on National Geographic Channel on July 14. That very morning, New Horizons will cruise within 7,800 miles (12,500 kilometers) of Pluto's surface, returning history's first up-close looks at the faraway world.