The stratosphere is the second layer of our atmosphere. It begins around 33,000ft (10,000m) and ends at around 160,000ft (48,800m). If an aircraft can fly above 50,000ft (15,150m), it can fly ...

NASA isn't just considering a futuristic plane on Mars.It's developing the future of your commercial planes, too. The space agency's Sustainable Flight Demonstrator project — intended to slash ...

The US X-37B and China's Shenlong are competing unmanned space planes whose covert missions are getting more complex. See how the spacecraft compare.

China's mysterious space plane has returned to Earth after spending over 8 months in orbit. The reusable spacecraft landed at the Jiuquan Satellite Launch Center in a remote section of northwest ...

A Chinese “reusable experimental spacecraft” believed to be the country’s secretive space plane has landed back on Earth after more than eight months in orbit – the latest development in a ...

The U.S. military’s uncrewed space plane has set a record for its longest flight in orbit. The X-37B craft has now been circling the earth for 902 days, greatly exceeding its previous record of ...

Its current space plane project, ... The uncrewed, tiny spacecraft is unarmed but some art released by Space Force has imagined other, future space planes physically intercepting enemy satellites.

The United States Space Force has unexpectedly published a photo its top-secret X-37B space plane took while orbiting the Earth last year. The image, which the military arm shared on X-formerly ...

The machine's two small propellers turn frantically before the plane begins its slow climb up into the cloudless sky to 60,000ft (18,300m) or 70,000ft (21,300m) – a relentless ascent into the ...