Amazon will assemble that big constellation over more than 80 launches, the majority of them performed by the Atlas V and its successor, ULA's new Vulcan Centaur. Amazon has also procured launches ...

Check back for live FLORIDA TODAY Space Team launch updates on this page, starting about two hours before today’s ULA Atlas V ...

The culprit: a pressure relief valve in the rocket's Centaur upper stage liquid oxygen ... The ULA team plans to haul the Atlas 5 and its mobile launch platform back to the nearby Vertical ...