Technical problems could delay the beginning of regular flights by SpaceX's Crew Dragon (left) and Boeing's CST-100 Starliner until at least late 2018. Credit: SpaceX artist's concept and Boeing
SLS EM-1 target markings
SpaceX Dragon. Credit: SpaceX
Mars ascent vehicle
Kepler K2
An image accompanying a Chinese Academy of Space Technology announcement of a successful airdrop parachute test in April. Credit: CAST
Expedition 56 Flight Engineer Serena Auñón-Chancellor of NASA in the Destiny laboratory module June 11 with gear for measuring and analyzing red blood cell function to help doctors understand how blood cell production is altered in microgravity. Credit: NASA Johnson via Flickr
AR-22 engine
Mars 2020 rover
Hera Didymos
Falcon 9 CRS-15
Technical problems could delay the beginning of regular flights by SpaceX's Crew Dragon (left) and Boeing's CST-100 Starliner until at least late 2018. Credit: SpaceX artist's concept and Boeing
After much tinkering, Northrop Grumman Aerospace Systems has at last finished the cryogenic cooler that will keep JWST's Mid-Infrared Instrument at its frosty-cool operating temperature of minus 270 Celsius. Credit: NASA artist's concept
Falcon Heavy
NEOCam
Render of the Tiangong-2 space lab (left) docked with a Shenzhou crewed spacecraft. Credit: CMSE

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