VIDEO: First NTSB briefing on Virgin Galactic accident

A SpaceX Falcon 9 rocket will launch an Intelsat communications satellite with a NASA-funded air pollution monitor to be positioned over the Americas in 2022, officials announced Tuesday.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the second set of 10 next-generation satellites for Iridium’s voice and data relay fleet.

An Ariane 5 rocket will make its fourth flight of the year Wednesday, hauling two communications satellites into orbit for Inmarsat, Hellas-Sat and India’s space agency.