The first all-female spacewalk in history won't be happening this week after all due to a last-minute crew swap, NASA announced today (March 25).
Northrop Grumman has named its next space station resupply ship after an astronaut who died in NASA's pursuit of the first moon landing.
The National Space Council will likely press NASA at its upcoming meeting to speed up its plans to return humans to the moon.
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecraft already in travel.
Thanks to the Apollo missions, scientists have their hands on hundreds of pounds of lunar rock right here on Earth. But because of a twist of fate, it isn't quite enough to solve a major puzzle.
The small-satellite launch company Rocket Lab called off the planned flight of an experimental satellite for the U.S. military Sunday (March 24) due to a video transmitter issue.
Rocket Lab is counting down to its first flight of 2019, an experimental satellite for the U.S. military, and you can watch it live online today (March 24).
A Rocket Lab Electron booster will launch the military R3D2 space antenna prototype satellite today, March 24, from New Zealand.
On March 25, 1655, Saturn's moon Titan was discovered by the Dutch scientist Christiaan Huygens. See how it happened in our On This Day in Space Video Series.
NASA science instruments are flying to the moon aboard two international lunar missions, according to agency officials.
The Space Development Agency officially came into existence last week and already is causing a stir.
A few brief hops in the Martian air two years from now could open alien worlds to an entirely new kind of exploration.
Earth just got another dazzling glamour shot, thanks to a satellite that snapped its photo on the March 20 spring equinox.
The International Space Station got a power upgrade today (March 22) as two NASA astronauts took a spacewalk to install new batteries on the station's solar arrays.
Russia's SIRIUS (Scientific International Research in Unique Terrestrial Station) experiment is now underway, simulating a flight to the moon.
The documentary "14 Minutes From Earth," which just premiered on Netflix, shows the secrecy behind, and the excitement following, the highest free-fall jump ever.