T-4 Minutes and Counting

The United Launch Alliance Atlas V rocket, with the Solar Orbiter spacecraft sealed in the payload fairing, awaits liftoff on Sunday, Feb. 9, at Space Launch Complex 41 at Florida's Cape Canaveral Air Force Station.
The United Launch Alliance Atlas V rocket, with the Solar Orbiter spacecraft sealed in the payload fairing, awaits liftoff on Sunday, Feb. 9, at Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. Image credit: NASA TV

The countdown has resumed at T-4 minutes and counting. United Launch Alliance and NASA have polled their teams and they’re “go” for launch of the Atlas V rocket and Solar Orbiter spacecraft at 11:03 p.m. EST. The spacecraft is on internal power.