NASA imposes cost caps on astrophysics flagship studies
WASHINGTON — NASA has directed teams studying proposed flagship-class missions for the next astrophysics decadal survey to fit their concepts within cost caps that ...…
SpaceX launches SES-12 on “hybrid” Falcon 9
WASHINGTON — SpaceX launched the all-electric SES-12 telecom satellite June 4 on a Falcon 9 rocket that combined two generations of the rocket.
Featuring a pre-flown ...…