Mars orbiters witness a ‘winter wonderland’ on the Red Planet (photos)
Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.
US Space Force 5 years later: What has it accomplished so far, and where does it go from here?
As the U.S. Space Force celebrates its fifth anniversary, the service's leadership looked back on its accomplishments so far while looking ahead to the future.
Watch Russian cosmonauts install new X-ray detector during ISS spacewalk today (video)
Russian cosmonauts Alexey Ovchinin and Ivan Vagner will perform a six-and-a-half-hour spacewalk on Dec. 19 to install new equipment outside the ISS. Watch it live here, courtesy of NASA.
Private Japanese rocket explodes after liftoff in its 2nd launch failure of 2024 (photos)
Japanese startup Space One lost its second Kairos 2 rocket shortly after liftoff due to an unknown failure.
‘We didn’t know what it was at first.’ NASA aircraft uncovers site of secret Cold War nuclear missile tunnels under Greenland ice sheet
NASA scientists conducting surveys of arctic ice sheets in Greenland got an unprecedented view of an abandoned "city under the ice" built by the U.S. military during the Cold War.
‘Alien signal’ sent from Mars decoded by father-daughter team
A signal beamed at Earth from Mars in 2023 has finally been decoded by a father and daughter team in the United States.