Virgin Galactic chalks up fifth commercial flight to space in a row
The six-member crew included three paying customers: a planetary scientist, a popular STEM educator and an investment manager.
Spacewalkers complete one main job, run out of time for another
The fourth all-female spacewalk accomplished one major objective, but the crew ran out of time to retrieve a failed electronics box.
China launches 3-man crew to Tiangong space station
The flight is the fourth keeping the Chinese space station permanently staffed with rotating crews of taikonauts.
Russian spacewalkers dodge leaking coolant from damaged radiator
The coolant leak in the experiment radiator follows similar leaks in a Soyuz crew ferry ship and a Progress cargo craft.
NASA launches Psyche probe on 6-year voyage to rare asteroid
The asteroid Psyche may be a sample of planetary core material left over from the birth of the solar system 4.5 billion years ago.
NASA's recovered Bennu asteroid samples show evidence of carbon, water
Water-bearing clays found in rocks from the asteroid Bennu support theories about how water may have made it to Earth in the distant past.
Russians investigate space station coolant leak
It's the third leak of heat-dissipating coolant on the International Space Station in less than a year, but officials say the crew is in no danger.
Amazon launches prototype satellites to test space-based internet delivery
Amazon plans to launch more than 3,000 internet relay satellites, competing with SpaceX and others in a fast-growing marketplace.