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Global Hawk UAV-to-UAV Refueling Demonstration
Global Hawk UAV-to-UAV Refueling Demonstration

With a long refueling probe protruding from its nose, NASA Global Hawk No. 871 landed at Edwards Air Force Base…

Global Hawk UAV-to-UAV Refueling Demonstration
Global Hawk UAV-to-UAV Refueling Demonstration

Soaring above California's Mojave Desert, NASA Global Hawk No. 871 sported a refueling probe in a checkout flight prior to…

Global Hawk UAV-to-UAV Refueling Demonstration
Global Hawk UAV-to-UAV Refueling Demonstration

NASA Global Hawk No. 871 banked to the right during a checkout flight in preparation for an unmanned aerial refueling…

Global Hawk UAV-to-UAV Refueling Demonstration
Global Hawk UAV-to-UAV Refueling Demonstration

NASA Global Hawk No. 871 sported a long refueling probe prior to a checkout flight in restricted airspace near Edwards…

Proteus Collects Data on the Effect of Wake Vortices
Proteus Collects Data on the Effect of Wake Vortices

Scaled Composites' Proteus aircraft trailed one of NASA's Global Hawks during a test mission to prepare for a demonstration of…

Scott Carpenter’s Mercury Flight
Scott Carpenter’s Mercury Flight

50 years ago today, Scott Carpenter flew the second American manned orbital flight on May 24, 1962. He piloted his…

Proteus Samples Wake Vortices Behind Global Hawk
Proteus Samples Wake Vortices Behind Global Hawk

Scaled Composites' Proteus aircraft trailed one of NASA's Global Hawks during a test mission to prepare for a demonstration of…

10 GeV Graph
10 GeV Graph

More than half of the sources above 10 GeV are black-hole-powered active galaxies. More than a third of the sources…

McNair School
McNair School

Cheryl McNair visited students of the Ronald McNair Academy in East Palo Alto, Calif. The middle school was named after…

Opportunity’s Selfie
Opportunity’s Selfie

NASA's Mars Rover Opportunity catches its own late-afternoon shadow in this dramatically lit view eastward across Endeavour Crater on Mars.…