An upgraded version of one of the solid rocket boosters being used for NASA's Space Launch System (SLS) experienced an ...

NASA followed last week's low-key engine test with the test-firing of a solid-fueled booster at Northrop Grumman's rocket ...

While the fate of NASA’s Space Launch System (SLS) rocket hangs in the balance, the agency is pushing ahead with tests of new components needed to launch the vehicle toward the Moon. The latest test ...

For decades, an engine concept known as aerospike has been an elusive rival to the traditional bell-nozzle rocket. Although capable of delivering higher payloads while decreasing overall rocket ...

A test of a new rocket motor for NASA’s future moon missions went awry this week, with the full-size booster hurling a powerful blaze and scattering debris. Northrop Grumman, lead contractor for the ...

President Donald Trump wants to phase out NASA's Space Launch System — but the agency seems to have other plans. As Ars ...

When the exhaust nozzle on one of the Vulcan rocket's strap-on boosters failed shortly after liftoff earlier this month, it scattered debris across the beachfront landscape just east of the launch ...

What makes an aerospike rocket unique is essentially inverting a traditional bell-shaped rocket nozzle. Instead of enclosing the exhaust, it forms an inward-facing curve, with the exterior side ...

Robert Zubrin’s Nuclear Salt Water Rocket (NSWR) design is a rocket that uses known physics and engineering . There are versions that could reach 7-8% of light speed. The use of low grade uranium ...

Thursday’s test fire began normally, but about 100 seconds in there appeared to be some kind of explosive event in the plume, possibly involving the exhaust nozzle.