United Launch Alliance Delays Vulcan Debut Flight to Early May

  • Replacement for vehicle with Russian engine faces slight delay
  • ULA is Boeing, Lockheed joint venture that works with Pentagon
The Vulcan Centaur at Cape Canaveral Space Force Station on Feb. 22. Photographer: Paul Hennessy/SOPA Images//Getty Images 
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Space-launch company United Launch Alliance delayed the debut flight of its next-generation rocket, Vulcan, by at least a month to early May.

Vulcan will be ready by mid-April but the mission’s main payload, a lunar lander built by Astrobotic Technology, can only launch within short, specific time windows each month, the company said in a press conference Thursday. That means the earliest opportunity will arise on May 4. ULA had previously targeted late March.