VIDEO: First NTSB briefing on Virgin Galactic accident

A SpaceX-owned supply ship arrived at the International Space Station on Sunday with 2.4 tons of cargo, including space debris and solar energy monitors mounted in the Dragon spacecraft’s external payload bay and more than 3,400 pounds of gear inside its reused pressurized module.

New satellites for SpaceX’s Starlink broadband network set for launch Monday from Cape Canaveral will debut several performance and safety upgrades, but they do not include changes to reduce the brightness of the satellites, a modification SpaceX says it will introduce on future Starlink craft to mitigate their impacts on ground-based astronomy.

SpaceX founder and CEO Elon Musk briefed reporters on the status of the Falcon Heavy test flight, and several of the company’s other projects, shortly after the huge rocket lifted off from NASA’s Kennedy Space Center in Florida.