Watch Live: NASA sends an asteroid sample back to Earth NASA's Osiris-REx mission sends a pristine sample of asteroid back to Earth Sunday morning. If it lands successfully, this cupful-or-so of space rock could shed light on the solar system's origins. Nell Greenfieldboyce
A source of carbon — a building block of life — is found on Jupiter's moon Europa "The discovery signals a potentially habitable environment in the ocean of Europa," according to the Webb Space Telescope's website. Bill Chappell
NASA effort to bring home asteroid rocks will end this weekend in triumph or a crash NASA's first effort to retrieve samples from an asteroid will send a capsule that contains extraterrestrial pebbles and dust plunging towards a Utah desert on Sunday. Nell Greenfieldboyce
New NASA report lays out roadmap for studying UFOs NASA is releasing a new report from advisers on what it would take for the agency to study unidentified anomalous phenomena (also known as UFOs) scientifically. Nell Greenfieldboyce
An Arab astronaut made history in space. Now his country has its sights on Mars The United Arab Emirates celebrated after Emirati astronaut Sultan Alneyadi splashed down to Earth following six months in space, a milestone for its growing space program. Aya Batrawy Play AudioListen 4 mins
Splashdown! NASA's Crew-6 returns after 6 months at the International Space Station The four-member crew — three astronauts and a cosmonaut — launched in March and conducted more than 200 experiments. They also performed spacewalks and did maintenance on the orbiting outpost. Russell Lewis
People are freaking out over a question mark seen in space. Scientists can explain A stunning new image from the James Webb Space Telescope shows a pair of actively forming stars. But many people are more curious about the tiny question mark visible toward the bottom of the frame. Rachel Treisman
Boeing finds new problems with Starliner space capsule and delays first crewed launch Boeing was set to launch its first astronauts into space next month. But engineers found flammable tape and problems with the capsule's parachutes. The Starliner program has been plagued by delays. Russell Lewis
SpaceX wants this supersized rocket to fly. But will investors send it to the Moon? Getting Starship off the ground is costing the commercial spaceflight company billions of dollars at a time when money is tight. Some analysts think more funding will be needed. Geoff Brumfiel
These are the 4 astronauts who'll take a trip around the moon next year The group will fly on NASA's Orion spacecraft as part of the Artemis program, which aims to return astronauts to the moon for the first time 50 years and establish a long-term presence there. Joe Hernandez
