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.
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.
Japanese startup Space One lost its second Kairos 2 rocket shortly after liftoff due to an unknown failure.
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.
A signal beamed at Earth from Mars in 2023 has finally been decoded by a father and daughter team in the United States.
