One day after putting Bulgaria's first communications satellite into orbit, SpaceX is preparing for a Falcon 9 launch from Vandenberg Air Force Base in California on Sunday (June 25).
NASA is hoping to execute a nighttime rocket launch that's designed to create artificial glowing clouds. These could be visible to millions of people along the U.S. East Coast tonight (June 18).
A splendid nebula decorates the cosmos 2,000 light-years from Earth.
Find out what happened today in space on June 24, 1999 when NASA's Cassini spacecraft flew by Venus on its way to Saturn.
The world’s first laser communication link…from the Moon!
A SpaceX Falcon 9 rocket is scheduled to take off from Vandenberg Air Force Base at 4:25 p.m. EDT (1:25 p.m. PDT/2025 GMT). This will be the second time SpaceX has launched a batch of Iridium satellites.
When the "Great American" total solar eclipse sweeps across the U.S. on Aug. 21, you'll need some safety-rated gear to watch it safely. Here are Space.com's picks for the best eclipse-viewing gear, including glasses, binoculars, telescopes and more!
For decades, while astronomers have detected black holes equal in mass either to a few suns or to millions of suns, the missing-link black holes in between have eluded discovery.
The mobile hotel concept combines high-speed rail with luxury accommodations.
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecrafts already in travel.
Astronomers use a variety of methods to determine how far away celestial objects are from Earth. Learn about this "cosmic distance ladder" in the ninth episode of "We Don't Planet."
NASA's James Webb Space Telescope (JWST) entered a testing facility at Johnson Space Center in Houston on Tuesday (June 20), where it will spend the next three months in a freezing-cold vacuum.
Astronomers have observed the eating habits of a protostar — and like any youngster, it has an affinity for fast food.
Here's where the staff of Space.com will be viewing the total solar eclipse on Aug. 21, 2017, and the reasons why we selected our individual viewing sites.
After a slight delay, a used SpaceX Falcon 9 rocket is scheduled to make its second trip to space today (June 23) to orbit the first communications satellite for Bulgaria.
The three potentially habitable Earth-size planets in the TRAPPIST-1 system may be even more promising abodes for life than scientists had thought.
Another planet-size object may be orbiting beyond Pluto in the far, icy reaches of the solar system.
Elon Musk's company successfully launched a satellite to orbit today (June 23) using a pre-flown Falcon 9 booster, pulling off the feat for the second time in less than three months.
A new understanding of how jets of plasma explode from the surface of the sun could help scientists crack one of the biggest mysteries surrounding our nearest star.
New NASA mission ideas would investigate the gassy environments of Uranus and Neptune, two planets on the edge of the solar system that spacecraft have visited only once.