According to Ursa Major, the H13 is an evolution of the Hadley engine, which already powers Stratolaunch’s Talon-A hypersonic test vehicle. Talon-A, if you are unaware, is a reusable hypersonic ...

You may at first overlook the lighter characters, since the Heavyweights tend to be better in the Mario Kart series, but in ...

The spaceplane will take off using a rocket-powered rail sled, which is about two miles long. This sled – which would sit on top of a runway – accelerates the Radian One to 537mph. But the craft will ...

The spaceplane will take off using a rocket-powered rail sled, which is about two miles long. This sled – which would sit on top of a runway – accelerates the Radian One to 537mph. But the ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. As astronauts and engineers are ...

(CNN) — As astronauts and engineers are fond of saying, space is hard. But that has never stopped bright minds from dreaming big. A Seattle-based company has resurrected NASA’s plans for a ...