Amazon's fledgling satellite constellation is about to get a little bit bigger following a ULA Vulcan rocket launch in Florida. How many are in space?

Check back Saturday for live FLORIDA TODAY Space Team launch updates on this page, starting about 90 minutes before today’s ULA Vulcan Leo 1 launch window opens.

United Launch Alliance plans to launch its powerful Vulcan rocket from Florida's Space Coast for the first time since a booster experienced a mid-flight anomaly.

SpaceX and the United Launch Alliance aren't feeling superstitious this Friday the 13th. Both are planning rocket launches today from Texas and Florida.

AWS CEO Matt Garman said orbital data centers are "highly unlikely" to become "economically feasible or practical in the next decade or two." ...

United Launch Alliance is set for the return of its Vulcan rocket Friday after nine months of delays on a mission that looks ...