
Why Chemical Rockets and Interstellar Travel Don't Mix
A toothpick proves that nobody's getting to the stars very quickly using conventional rocketry

Why Chemical Rockets and Interstellar Travel Don't Mix
A toothpick proves that nobody's getting to the stars very quickly using conventional rocketry

Sputnik Moments: Trio of Spaceflight Events Shook U.S. in 1957
The Soviet Union launched the world’s first artificial satellite 60 years ago


James Webb Space Telescope Surrounded by Rising Floodwaters
Isolated in a giant thermal vacuum chamber, NASA’s $8.6 billion next-generation observatory is riding out the worst of Hurricane Harvey

Reaching for the Stars, Breakthrough Sends Smallest-Ever Satellites into Orbit
Despite technical glitches and regulatory hurdles, nanosatellite swarms could someday be the cornerstone for revolutionary interplanetary or even interstellar space-science missions

Sweating the Small Stuff: CubeSats Swarm Earth Orbit
A boom in nanosatellites could revolutionize space science and industry, but also dramatically increase the hazards of space junk

Russia Could Stay with the International Space Station to 2028
The orbital outpost is presently slated to be retired as early as 2024

NASA's 50 Years of Mars Exploration [Video]
Humans have been visiting and exploring Mars for more than half a century, and NASA has released a video celebrating the agency's remarkable contributions

NASA Probe Snaps Stunning New Images of Dwarf Planet Ceres
Scientists think bright spots may be briny material bubbling up into a crater

Cosmic Rays May Threaten Space-Weather Satellite
DSCOVR’s computer may be suffering from radiation-induced glitches, months after it became the primary sentinel for incoming solar storms

After Glitch, NASA’s Juno Probe Resumes Science Mission at Jupiter
Now recovered from protective hibernation, the spacecraft is preparing for its next close encounter with the giant planet

How NASA Fights to Keep Dying Spacecraft Alive
Many deep-space probes have essentially entered hospice care

New Images Reveal Fate of Lost Mars Lander
European Space Agency’s Schiaparelli spacecraft crashed and possibly exploded