Two British start-ups claim their biofuel-based rockets produce much less carbon emissions and dangerous soot particles than their fossil fuel-powered counterparts.
On Oct. 25, 1671, the Italian astronomer Giovanni Cassini discovered a new moon at Saturn! See how it happened in our On This Day In Space series.
A 'space juggler' plans to release a film shortly about the joys and challenges of doing performance art in zero gravity.
Privateer aims to help humanity tackle its growing space-junk problem, and the startup has just hired one of the people who will lead this ambitious effort.
China has test fired a huge new solid rocket motor, creating more propulsion options for the country’s growing space activities.
An Ariane 5 rocket will launch satellites for SES and the French military tonight, Oct. 23, and you can watch it live here.
The U.S. needs to invest more in nuclear-powered spacecraft to be competitive with nations like China, experts say.
An uncrewed Orion capsule could ride the first Space Launch System megarocket as early as Feb. 12, 2022. But a lot has to go right.
The FAA held two public hearings this week about its environmental assessment of SpaceX's orbital launch activities in South Texas. People voiced strong opinions, both pro and con.
The hush-hush launches from NASA's Wallops Flight Facility tested advanced hypersonic weapons technology for the U.S. military.
China just launched what is planned to be its longest crewed mission to date, but the next spacecraft in the series is ready to blast off should the Shenzhou 13 astronauts need rescuing.
China's Tianwen 1 orbiter and Zhurong rover are once again active at Mars following a communications blackout caused by the sun interfering with radio signals sent from Earth.
NASA wants more private-sector firms to ferry its astronauts up into space, including missions to and from the International Space Station.
Here's a guide to all the rocket launches and astronomical events in 2021, as well as milestones for space missions, anniversaries and conferences.
Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.
Thomas Pesquet tucked a copy of the story in paperback somewhere in the SpaceX Crew Dragon before his launch.
Arianespace halted plans to launch two communications satellites into orbit on Friday (Oct. 22) to allow time for more ground equipment checks.