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Pegasus

Mission Reports

Pegasus rocket ready for airborne launch with NASA scientific satellite

October 8, 2019 Stephen Clark

After a year-long delay to troubleshoot recurring erroneous data signatures from the rudder of Northrop Grumman’s air-launched Pegasus XL rocket, NASA is eager to send a $252 million research satellite into orbit as soon as Thursday night off Florida’s east coast on a mission to probe the ionosphere, a region near the boundary between Earth’s atmosphere and space.

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.

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News Headlines

  • Russian Progress cargo ship arrives at International Space Station
    September 19, 2026
  • SpaceX launches 27 Starlink V2 Mini satellites on Falcon 9 rocket from Vandenberg
    September 19, 2026
  • SpaceX launches national security payload for U.S. Space Force from Vandenberg
    September 15, 2026
  • Avio launches pair of climate monitoring European spacecraft to study plants, oceans and atmospheric changes
    September 15, 2026
  • SpaceX launches 700th Falcon rocket, carries final 3 O3b mPOWER satellites to orbit for SES
    September 13, 2026
  • SpaceX launches classified payload for the U.S. Space Force
    September 9, 2026
  • SpaceX launches 80th Starlink mission of 2026
    September 5, 2026
  • SpaceX launches Starlink mission from West Coast
    September 1, 2026
  • Roman Space Telescope, NASA’s next ‘great observatory,’ launched
    August 29, 2026
  • SpaceX launches 27 Starlink satellites on Falcon 9 rocket from Vandenberg
    August 25, 2026
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