Radian Aerospace has moved one step closer to achieving the “holy grail” of spaceflight: a reusable space plane that can take off from an airfield and land on a runway like a conventional airplane.

A Seattle-area startup called Radian Aerospace is fine-tuning the design of its orbital space plane, with an eye toward building a subscale prototype as early as this year. The company is also in the ...

Radian Aerospace’s subscale prototype for its Radian One space plane sits on a runway in the United Arab Emirates. (Radian Aerospace Photo) Seattle-based Radian Aerospace has finished the first round ...

In the 1990s, NASA designed an experimental space plane meant to be a cost-effective alternative to expensive rockets. Called the X-33, it was based on a concept called SSTO — or “single stage to ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. One company is reviving a decades-old NASA idea to build a reusable space plane that could shuttle ...