See photos and images of the U.S. military's XS-1 experimental space plane project in this Space.com gallery. The XS-1 Experimental Spaceplane program is led by DARPA.

The XS-1 (Experimental Spaceplane 1) is envisioned to heft payloads for less than $5 million a flight, each weighing between 3,000 and 5,000 lbs. (1,360 to 2,267 kilograms).

DARPA has selected The Boeing Company to complete advanced design work for the Agency™s Experimental Spaceplane (XS-1) program, which aims to build and fly the first of an entirely new class of ...

DARPA Space Budget Increase Includes $27M for Spaceplane. DARPA’s XS-1 Experimental Spaceplane Call for Proposals Eyes a 2018 Liftoff. DARPA To Start Reusable Launch Vehicle Program.

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Launching satellites into orbit could get a lot cheaper thanks to an experimental space plane. SEE ALSO: NASA's new space fabric looks like chain mail and can protect astronauts This week, the ...

DARPA is now beginning to narrow in on a design for the XS-1, an experimental spaceplane that would allow quick, relatively inexpensive access to orbital altitudes. DARPA foresees a .

Darpa’s new competition to build and fly the XS-1 experimental spaceplane requires bidders to submit a plan to transition the reusable launch vehicle demonstrator to a commercial business model.

Boeing will develop its Phantom Express reusable first stage for DARPA's XS-1 program, with a goal of performing 10 flights in 10 days and at least one flight to Mach 10.

After investing five years and $1 billion, NASA yesterday killed the experimental space plane program that was the centerpiece of the agency's effort to develop a new generation of vehicles for ...

Northrop Grumman (NYSE: NOC) has secured a potential $167.1 million contract modification from the U.S. Navy to supply four lot 6 full-rate production Ground/Air Task Oriented Radar systems.