Live coverage: Soyuz lifts off from Vostochny Cosmodrome

Follow the key events of the Falcon 9 rocket’s ascent to orbit with three Earth observation satellites for Canada’s Radarsat Constellation Mission.

United Launch Alliance announced Monday that the company will assume responsibility for commercial marketing and sales for Atlas 5 rocket missions, taking over for a Lockheed Martin division that previously sold Atlas 5 launch services on the commercial market.

Firefly Aerospace and Aerojet Rocketdyne have announced a strategic partnership to collaborate on rocket propulsion, an agreement that could lead to Firefly’s use of Aerojet’s AR1 engine in a new medium-lift launcher.