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10 July 2015, 06:30 PM ET
The Falcon 9 exploded less than 3 minutes after blasting off on June 28, scuttling SpaceX's seventh contracted resupply flight to the orbiting lab for NASA. The consequences of the mishap will probably be substantial for the company, Musk said.
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, 12:21 PM ET
A crew of "Star Trek" fans is taking the series where it's never been before: For a fraction of the cost of a Hollywood film, they plan to create a feature-length production funded by crowdsourcing.
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.
10 July 2015, 04:40 AM ET
Venus is putting on a show for skywatchers throughout July. Tonight (July 10), Earth's "sister planet" will be at its most luminous, blazing brightly in the western sky.
10 July 2015, 04:01 AM ET
A pre-dawn celestial pageant well worth getting up early to see will take place Sunday morning (July 12), with a lovely crescent moon in close proximity to one of the most beautiful star clusters.
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, 03:11 PM ET
SpaceX founder and CEO Elon Musk says data collected during the June 28 explosion of a Falcon 9 rocket is "difficult to interpret," and that the cause of the explosion is not yet understood.
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, 12:18 PM ET
NASA has named its first commercial crew 'cadre' — the four astronauts who will train to fly aboard the first test flights of Boeing's CST-100 and SpaceX's Dragon spacecraft. The space agency assigned Bob Behnken, Eric Boe, Doug Hurley and Sunita Williams
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
Scientists have discovered a number of alien solar systems much older than our own. If any such ancient worlds host life, it would have had a long time to evolve.
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.
09 July 2015, 07:00 AM ET
As the International Space Station (ISS) zoomed over Australia on June 30, Dylan O'Donnell captured this amazing view of the orbiting lab crossing in front of the moon.
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.
08 July 2015, 04:43 PM ET
Does Pluto really have baby snowflakes and ice volcanoes? New Horizons team members weigh in.
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, 02:20 PM ET
One of the most powerful cosmic explosions ever observed may have been powered by an object with a magnetic field 5,000 trillion times stronger than Earth's
08 July 2015, 11:00 AM ET
NASA's Dawn spacecraft is staying in its current orbit around the dwarf planet Ceres a bit longer than originally planned while engineers try to figure out why the probe went into a precautionary "safe mode" last week.
08 July 2015, 10:09 AM ET
The New Horizons spacecraft's historic flyby of Pluto will occur on July 14, 2015. "Mission Pluto" premieres Tuesday (July 14) at 9 p.m. EDT/8 CDT on the National Geographic Channel. 
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).
08 July 2015, 07:00 AM ET
Scientists knew Neptune's magnetic field was strange, just not this strange: Researchers reconstructed the magnetic field of the distant planet and found a field constantly in flux, tilted and bubbling out to one side.
08 July 2015, 07:00 AM ET
Ford Motor Company is launching a one-of-a-kind rocket-inspired muscle car to support educating a new generation of aviators. The Saturn V-styled "Apollo Edition Mustang" is the feature lot being auctioned on July 23 to benefit youth aviation programs.
08 July 2015, 07:00 AM ET
A major new telescope proposed for launch in the 2030s would focus on the search for life on other planets and view the universe with 25 times higher resolution than the Hubble Space 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.