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Pegasus

Mission Reports

Air-launched rocket arrives at Cape Canaveral for satellite delivery mission

October 1, 2019 Stephen Clark

A Northrop Grumman Pegasus XL rocket is back at Cape Canaveral after a cross-country ferry flight Tuesday under an L-1011 carrier jet, ready for final checkouts and a countdown dress rehearsal before an airborne launch off Florida’s east coast Oct. 9 with NASA’s Ionospheric Connection Explorer satellite.

Mission Reports

Long-delayed NASA science satellite gets October launch date

September 10, 2019 Stephen Clark

The launch of a NASA ionospheric research satellite off Florida’s east coast is targeted for Oct. 9 after persistent technical problems with its air-dropped Pegasus rocket stymied two launch opportunities last year.

Falcon 9

SpaceX wins NASA contract to launch X-ray telescope on reused rocket

July 8, 2019 Stephen Clark

NASA has selected a SpaceX Falcon 9 rocket — flying with a reused first stage booster — to launch the Imaging X-ray Polarimetry Explorer mission from pad 39A at the Kennedy Space Center in Florida in April 2021, bypassing Northrop Grumman’s air-launched Pegasus rocket for the task.

Mission Reports

Photos: Stratolaunch’s giant airplane flies over Mojave

April 13, 2019 Stephen Clark

Stratolaunch’s rocket carrier jet, the largest aircraft in the world by wing span, took off Saturday morning from the Mojave Air and Space Port in California for its first test flight.

News

World’s largest airplane completes first flight

April 13, 2019 Stephen Clark

Built for hauling rockets aloft to launch satellites, the world’s biggest airplane landed Saturday after a widely-anticipated test flight over California’s Mojave Desert, six months after the death of billionaire benefactor Paul Allen clouded the future of the project.

Mission Reports

No new date set for Pegasus launch with NASA’s ICON satellite

November 8, 2018 Stephen Clark

NASA and Northrop Grumman officials have not set a new target date for the launch of the ICON ionospheric research satellite aboard an air-launched Pegasus XL rocket following a mission abort Wednesday, and it could be weeks before the the long-delayed science probe has another chance to head into orbit off Florida’s east coast.

Mission Reports

Live coverage: Pegasus launch scrubbed, carrier jet returns to Cape Canaveral

November 6, 2018 Stephen Clark

NASA’s Ionospheric Connection Explorer satellite was scheduled to launch Wednesday aboard an air-dropped Northrop Grumman Pegasus XL rocket over the Atlantic Ocean, but managers aborted the mission after encountering a technical concern with the rocket following departure from Cape Canaveral Air Force Station. The launcher’s L-1011 carrier jet returned to Florida.

Mission Reports

Timeline for Pegasus launch of ICON satellite

November 6, 2018 Stephen Clark

Northrop Grumman’s Pegasus XL rocket will take about 11 minutes to place NASA’s Ionospheric Connection Explorer, or ICON, satellite into a roughly 357-mile-high (575-kilometer) orbit after an airborne launch off Florida’s east coast.

Mission Reports

NASA managers clear Pegasus rocket for launch with ICON satellite

November 6, 2018 Stephen Clark

NASA and Northrop Grumman managers at the Kennedy Space Center decided Tuesday to press ahead with final preparations to launch a NASA scientific research satellite early Wednesday aboard an air-launched Pegasus XL rocket off Florida’s east coast.

Mission Reports

Pegasus launch set for no earlier than Wednesday, but data review continues

November 2, 2018 Stephen Clark

The launch of a NASA research satellite built to probe conditions along the boundary between Earth’s atmosphere and space has been tentatively rescheduled for no earlier than Wednesday, pending the conclusion of a review of unexpected data signatures discovered on the first stage of the mission’s air-launched Pegasus XL rocket.

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News Headlines

  • SpaceX launches 23 Starlink satellites on Memorial Day weekend Falcon 9 flight
    May 24, 2025
  • FAA clears SpaceX to launch its 9th Starship super heavy rocket, while Flight 8 mishap investigation continues
    May 23, 2025
  • SpaceX completes 450th Falcon booster landing during Friday Starlink mission
    May 23, 2025
  • New Falcon 9 booster makes its debut on Starlink delivery mission
    May 20, 2025
  • SpaceX scrubs Monday night Falcon 9 launch minutes before liftoff
    May 19, 2025
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