Live coverage: Atlas 5 countdown and launch journal

The U.S. Air Force has committed $109 million in funding to advance development of new rockets designed by United Launch Alliance, Blue Origin and Northrop Grumman, leaving out SpaceX in a government investment round that will lead to the military’s selection of two long-term launch providers in late 2019 or 2020.

In a fiery, dramatic comeback for SpaceX, a Falcon 9 rocket took off from Cape Canaveral, streaking into orbit as its booster stage returned to a historic landing on Florida’s Space Coast in a key achievement aimed at slashing the cost of space transportation. Eleven communications satellites for Orbcomm were deployed in orbit in the flight’s prime objective.

NASA is close to deciding whether to spend an extra $150 million to send the InSight lander to Mars in 2018 or cancel the mission after an instrument problem made the spacecraft miss a launch opportunity this year, with a verdict on the project’s future expected within weeks, officials said.