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Forget Houston. This Space Balloon Will Launch You to the Edge of the Cosmos From a Floating...
SpaceX and NASA show off how Starship will help astronauts land on the moon (images)
How aged cells in one organ can cause a cascade of organ failure
World's most advanced hypergravity facility is now open for business
New Low-Carbon Concrete Outperforms Today's Highway Material While Cutting Costs in Minnesota
Spinning fusion fuel for efficiency and Burn Tritium Ten Times More Efficiently
Rocket plane makes first civil supersonic flight since Concorde
Muscle-powered mechanism desalinates up to 8 liters of seawater per hour
Student-built rocket breaks space altitude record as it hits hypersonic speeds
Researchers discover revolutionary material that could shatter limits of traditional solar panels
Rocketstar to Launch 3D Printed Aerospike Engine Rocket in February
Aerospike engines will use 25–30% less fuel at low altitudes. Rocketdyne did a lot of tests in the 1960s on this technology. NASA tried to make aerospikes work for the X-33 program in the 1990s.
Three XRS-2200 engines were built during the X-33 program. The XRS-2200 produced 204,420 lbf (909,300 N) thrust with an Isp of 339 seconds at sea level and 266,230 lbf (1,184,300 N) thrust with an Isp of 436.5 seconds in a vacuum.