Antimatter and Fusion Drives Could Power Future Spaceships
The raw materials for high-energy reactions are difficult and expensive to make, but production may be feasible in 50 years
Stories by SPACE.com
Explosive Impact at Jupiter Spotted by Amateur Astronomers
A fireball was recorded entering the gas giant's atmosphere on September 10, reminiscent of the scarring impact of Comet Shoemaker-Levy 9 there in 1994
Meteoroids Change Atmospheres of Earth, Mars, Venus
Similarities in the upper atmospheres of the three planets may be due to meteoroids' shedding heavy elements as they pass through
How Astronauts Used a Toothbrush to Fix Space Station
Decades after Apollo 13, NASA engineers and astronauts can still improvise solutions for sticky situations in space
Northern Lights Blaze Up after Big Sun Storm
As we come to the peak of the sun's activity cycle, scientists expect more dazzling, but possibly disruptive, displays
Red Giants and White Dwarfs Make Explosive Stellar Pairings
A new study indicates that stellar explosions can involve many different kinds of stars
NASA Announces New Robotic Mars Mission
NASA's next low-budget planetary mission will land a probe on Mars in 2016 to investigate the Red Planet's inner workings
Mars Rover Curiosity Set to See Red Planet As Never Before
The six-wheeled robot is carrying 10 science instruments—and a wealth of high-tech camera gear
Why Aren't There Any Openly Gay Astronauts?
The lack of even one openly gay or lesbian living astronaut in the history of American spaceflight may reflect the culture at the NASA astronaut office
Gliese 581 g Tops List of 5 Potentially Habitable Exoplanets
Gliese 581 g shot to the top of a list put out by researchers at the University of Puerto Rico at Arecibo’s Planetary Habitability Laboratory (PHL) after a new study marshaled support for its long-debated existence...
How Many Neutrons and Protons Can Get Along? Maybe 7,000
The finding could be put to use at a new facility opening in 2020 that might create new elements—that is, nuclei with more than 118 protons—in addition to new isotopes of the known elements...
Faster-Than-Light Neutrinos Aren't
The same lab that first reported the shocking results last year, which could have upended modern physics, now reports that neutrinos "respect the cosmic speed limit"
Venus Crosses the Sun for Last Time until 2117
To celebrate the last transit of Venus in the 21st century, astronomers and skywatchers came together in many sites around the world
SETI Astronomer Jill Tarter Steps Down from Alien Hunt
Tarter is shifting into a full-time fund-raising role for the SETI Institute, which had to shut down a set of alien-hunting radio telescopes for more than seven months last year due to budget shortfalls...
SpaceX Rocket Launch Vindicates Commercial Spaceflight
The company's Falcon 9 liftoff this morning represents the potential of a new era in U.S. spaceflight, the White House science adviser says
Science Fiction Is Barely Ahead of Space Exploration Reality
Science fiction writers will always, by definition, be one step ahead of engineers, and interstellar travel and time travel still elude them
Skywatchers Hot for "Ring of Fire" Solar Eclipse
This is the first widely visible "ring of fire" solar eclipse in the U.S. in nearly 18 years
Our Sun Moves More Slowly Than Thought
Scientists are shocked to find that a giant shock wave long suspected of existing in front of the sun is not there
Huge Asteroid Vesta Actually Is an Ancient Protoplanet
Data from the Dawn spacecraft now reveal that Vesta, as wide as the state of Arizona, is large enough to have had its own internal geologic evolution
Secretive Bezos-Funded Group Reveals Spacecraft Plan Details
Blue Origin's spacecraft sports a biconic shape and recently underwent wind tunnel testing at a Lockheed Martin facility in Dallas
