Live coverage: Proton rocket blasts off on lengthy 15-hour mission

Atlas 5 rocket hardware and a U.S. Air Force communications satellite have arrived at Cape Canaveral for United Launch Alliance’s next mission, scheduled for liftoff June 27.

Russian officials could complete their investigation of a rocket failure Tuesday by mid-December, and multiple Russian news reports suggest the probe has narrowed to focus on the guidance computer on the Soyuz launcher’s Fregat upper stage.

A new sunshade, or visor, designed to reduce the brightness of SpaceX’s Starlink broadband Internet satellites will debut on the company’s next launch, a measure intended to alleviate astronomers’ concerns about impacts on observations through ground-based telescopes, SpaceX founder Elon Musk said Monday.