Stats: Atlas 5 and Delta 4 histories and backlogs (updated April 20)

The 27 Kuiper satellites will head to low Earth orbit on an Atlas 5 rocket flying in a 551 configuration, using five solid rocket boosters. ULA has not announced a new launch date following the scrub.

Carrying more science research gear to the International Space Station than ever launched before by U.S. commercial logistics vehicles, the next Orbital ATK Cygnus freighter takes flight Tuesday.

The scientist in charge of NASA’s OSIRIS-REx mission hopes to apply more than $30 million in leftover funding toward reducing the risk of the probe’s touch-and-go maneuver to snag a piece of asteroid Bennu, then eventually hire more experts to analyze the primordial specimens when they return to Earth in 2023.