How to watch ULA launch the Air Force's secretive X-37B spaceplane

Emre Kelly
Florida Today

Update: LIFTOFF of Atlas V with the X-37B spaceplane at 9:14 a.m. Sunday.

A United Launch Alliance Atlas V rocket is set for the Sunday morning launch of an advanced, secretive military spaceplane from Cape Canaveral Air Force Station.

If everything goes according to plan, the 197-foot vehicle will launch at 9:14 a.m. with the Air Force's X-37B, delivering it to low-Earth orbit for a mission that could last months or years. The 29-foot spaceplane can conduct several simultaneous experiments in orbit.

The X-37B is owned by the Air Force, but operated by the Space Force.

Forecasters are expecting 80% "go" conditions during the window

There are two parts to our coverage:

► 7:30 a.m. Sunday: Live chat and video with our space team at floridatoday.com/space. We'll have in-depth charts, graphics, and you can join the conversation.

► 8:45 a.m. Sunday: Real-time augmented reality and live video will be available in our 321 Launch app. You'll be able to follow live on your Android or iOS device in AR.

Remember: launch is at 9:14 a.m. Eastern. See you then.

Contact Emre Kelly at aekelly@floridatoday.com or 321-242-3715. Follow him on Twitter, Facebook and Instagram at @EmreKelly. Support his space journalism by subscribing at floridatoday.com/specialoffer/.