Google's Sergey Brin isn't the only billionaire taking up a lot of hangar space with an ambitious and massive aircraft construction project. For years, Microsoft co-founder Paul Allen has desired to ...

The sole S-37 first flew on September 25 1997. Though only one was made, its Batman-like aesthetic earned it a lasting place ...

The biggest airplanes in the world measured by their wingspan, the biggest one so far is the Stratolaunch. The Stratolaunch ...

Stratolaunch Systems, the company behind the world's largest aircraft, is making headlines again. The firm's Talon-A1 hypersonic test aircraft has successfully completed its first powered flight, ...

The largest aircraft ever built, Paul Allen's Stratolaunch design, is moving into production and plans to take flight in 2016. If successful, it'll be capable of launching larger payloads into space ...

Microsoft co-founder Paul Allen's massive new aircraft, the Stratolaunch, is complete and has rolled out of its hanger for first time. The Stratolaunch has been six years in the making; Allen ...

Stratolaunch is upgrading its 747 carrier platform to support test flights of its hypersonic Talon-A vehicle. (Stratolaunch) Stratolaunch, a California-based firm building a reusable hypersonic test ...

Stratolaunch Roc aircraft carrying Talon-A hypersonic test vehicle. With a wingspan that stretches 385 feet, it’s the widest airplane in operation (Stratolaunch) Editor’s note: This story was updated ...

Stratolaunch Roc aircraft carrying Talon-A hypersonic test vehicle. With a wingspan that stretches 385 feet, it’s the widest airplane in operation (Stratolaunch) (AP) — U.S. aerospace company ...

Stratolaunch successfully completed the first powered flight of its TA-1 hypersonic test vehicle, achieving all primary objectives. The flight involved a safe release from the Roc aircraft, engine ...

Hypersonic flight start-up Stratolaunch has achieved a “significant” milestone towards its goal of flying its in-development hypersonic aircraft for the first time before year-end. Stratolaunch on 3 ...

US air-launch specialist Stratolaunch has shown off the Boeing 747-400 it acquired after former operator Virgin Orbit was broken up earlier this year. Stratolaunch, based in Mojave, bid for the ...