Photos: Predawn launch of Atlas 5

NASA Administrator Bill Nelson is set to discuss the agency’s decision following a rare mid-mission, agency-level flight readiness review. A press conference will begin no earlier than an hour following the conclusion of the discussion.

Less than two weeks after its launch from Cape Canaveral, a new NOAA weather observatory has boosted itself into a circular orbit more than 22,000 miles over the equator, and officials have renamed it GOES-17 ahead of a test series before it enters service later this year.

Concerns over an unspecified part flying on the upper stages of United Launch Alliance’s rockets have delayed the launch of a GPS satellite on a Delta 4 booster from July 25 to no earlier than Aug. 22. The same issue has also delayed an Atlas 5 launch.