A company owned by Microsoft's cofounder just unveiled the world's biggest plane

For decades, Ukraine’s Antonov An-225 has reigned supreme as the largest plane in the world.

That is, until now.

On Wednesday, Stratolaunch rolled its low-orbit-launch aircraft out of the company’s hangar in the California desert for the first time.

With wings spanning 385 feet, it is the world’s largest airplane by wingspan — besting the An-225’s 290 feet. The aircraft is also 238 feet long and 50 feet tall.

Click through the gallery to get a closer look.

This gallery originally appeared as a story by Business Insider here.

All photos courtesy of Business Insider.