February 13, 2026
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Breaking News
  • [ February 12, 2026 ] NASA loading liquid hydrogen aboard Artemis 2 rocket in unannounced test Artemis
  • [ February 12, 2026 ] Vulcan suffers solid rocket booster problem during USSF-87 launch Mission Reports
  • [ February 11, 2026 ] ULA to launch geosynchronous orbit surveillance satellite for the U.S. Space Force News
  • [ February 11, 2026 ] SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
  • [ February 11, 2026 ] ULA sets sights on ramping up launch cadence in 2026 Atlas 5

Mark Sirangelo

Members

Q&A with Mark Sirangelo, leader of Sierra Nevada Space Systems

October 8, 2015 Stephen Clark

Sierra Nevada Corp. has business activity across a spectrum of programs, from Orbcomm communications satellites to parts on the New Horizons mission to Pluto, but all eyes are now on the company’s Dream Chaser spacecraft. Sierra Nevada’s Mark Sirangelo met with reporters at the 2015 International Symposium for Personal and Commercial Spaceflight.

News Headlines

  • NASA loading liquid hydrogen aboard Artemis 2 rocket in unannounced test
    February 12, 2026
  • Vulcan suffers solid rocket booster problem during USSF-87 launch
    February 12, 2026
  • ULA to launch geosynchronous orbit surveillance satellite for the U.S. Space Force
    February 11, 2026
  • SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    February 11, 2026
  • ULA sets sights on ramping up launch cadence in 2026
    February 11, 2026
  • Weather delays NASA’s SpaceX Crew-12 flight to the International Space Station
    February 9, 2026
  • SpaceX test fires its Falcon 9 rocket ahead of midweek launch of Crew-12 to the space station
    February 8, 2026
  • SpaceX launches return to flight Falcon 9 mission following brief stand down
    February 7, 2026
  • SpaceX shifts away from Dragon launches at pad 39A as Starship looms
    February 6, 2026
  • ULA offloads first Vulcan rocket at Vandenberg at it preps its next Cape launch
    February 6, 2026
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