05 August 2015, 01:01 PM ET
For the first time, astronomers have spotted a protogalactic disk — a giant whirling cloud of gas that gives birth to a galaxy — and the discovery could reveal clues about how galaxies form.
05 August 2015, 09:53 AM ET
Escape Dynamics of Colorado is developing remotely powered thrust systems for trans-atmospheric spacecraft. Offloading the mass of fuel and large engines could empower “single-stage-to-orbit" reusable vehicles.
04 August 2015, 03:59 PM ET
Six people spent two-thirds of a year in the HI-SEAS (Hawaii Space Exploration Analog and Simulation) analog pretending to be Martian astronauts. Here's a look inside the science, work and fun they had during their time on "Mars."
03 August 2015, 05:30 PM ET
Broomfield, Colorado-based Escape Dynamics announced July 17 it carried out a small-scale test in the laboratory of its beamed microwave thruster. In that test, the company beamed microwave energy to a thruster, heating helium propellant and generating a
31 July 2015, 06:55 PM ET
From an amazing view of Africa from space to a tint galaxy bursting with stars, don't miss these stunning space images.
31 July 2015, 08:45 AM ET
XCOR Aerospace, a company developing a two-seat suborbital spaceplane for tourism and research applications, plans to raise its ticket prices by 50 percent next year, the company announced July 16.
29 July 2015, 08:30 AM ET
The photo shows SpaceShipTwo pilot Peter Siebold floating back to Earth via parachute on Oct. 31, just moments after the vehicle broke apart in a test-flight disaster that killed co-pilot Michael Alsbury.
28 July 2015, 04:00 PM ET
The fatal breakup and crash of Virgin Galactic's first SpaceShipTwo space plane last year was caused by a co-pilot error, as well as the failure of the spacecraft's builders to anticipate such a catastrophic mistake, federal safety investigators say.
28 July 2015, 02:52 PM ET
The pilots hired to fly SpaceShipTwo have extensive flight and spaceflight experience.
28 July 2015, 02:30 PM ET
The founder of Virgin Group gives a statement in regards to the report. The NTSB found that the co-pilot triggered the failure.
27 July 2015, 03:30 PM ET
The dream of returning humans to the moon could become a reality for the relatively low price of $10 billion, as long as NASA is willing to buy from private spaceflight companies, a new report shows.
22 July 2015, 07:07 AM ET
Prior to the June 28 Falcon 9 rocket explosion, SpaceX had enjoyed 20 straight successful launches over a seven-year stretch. That track record perhaps made the company a bit complacent, Musk told reporters Monday (July 20).
20 July 2015, 03:53 PM ET
SpaceX CEO Elon Musk said today (July 20) that the June 28 failure of its Falcon 9 rocket was likely caused by a faulty steel strut on the upper stage, which broke during ascent, leading to the destruction of the rocket and Dragon capsule.
19 July 2015, 03:19 AM ET
Gorgeous views of Pluto and its ice mountains, its largest moon Charon to the release of Plutos USPS stamp, don't miss these amazing space images.
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.
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.
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, 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, 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, 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
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, 07:01 AM ET
Interstellar travel could be humanity's greatest challenge — or humanity's greatest mistake. A Q&A with author Kim Stanley Robinson on his new novel, "Aurora," explores the feasibility of interstellar travel, artificial intelligences, and storytelling.
02 July 2015, 12:20 PM ET
The Houston airport where astronauts have departed on training flights for more than 50 years is now host to the United States' 10th commercial spaceport. Ellington Airport was granted a launch site license by the Federal Aviation Administration (FAA).
02 July 2015, 07:00 AM ET
After "sleeping" for 26 years, a black hole's activity lit up astronomical observatories on June 15,and it's still going on today.
01 July 2015, 11:05 AM ET
While NASA has stated it will rebound from the loss of ISS cargo, space analysts contacted by Space.com have flagged a number of wait-and-see ripple effects stemming from the accident.
01 July 2015, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in June 2015.
29 June 2015, 04:23 PM ET
The June 28 failure of a SpaceX Falcon 9 rocket is almost certain to deal a blow to the revenue projections of numerous SpaceX commercial customers that had been basing their results on being in orbit this year or early in 2016.
29 June 2015, 02:55 PM ET
If Sunday's rocket mishap had occurred during a crewed launch of the manned "Dragon V2" capsule, it likely would not have caused any fatalities, SpaceX President and Chief Operating Officer Gwynne Shotwell said.
29 June 2015, 12:35 PM ET
The SpaceX CRS-7 cargo transport to the ISS failed on June 28th, 2015. The rocket stack broke apart shortly after reaching maximum dynamic pressure (Max Q).
29 June 2015, 07:30 AM ET
The failure of SpaceX's Falcon 9 rocket during a cargo launch Sunday shouldn't have a big impact on the company's ability to fly astronauts to orbit and back a few years from now, NASA officials said.
28 June 2015, 04:03 PM ET
The three crewmembers currently aboard the International Space Station are in no danger of running out of crucial supplies despite today's failure of a SpaceX cargo mission to the orbiting lab, NASA officials said.
28 June 2015, 11:38 AM ET
An exoplanet apparently possesses a huge cometlike tail, NASA's New Horizons spacecraft snapped amazing images of Pluto and a solar storm supercharged northern lights displays. Here's a look at Space.com's top stories of the week.