A Virgin Atlantic passenger plane flies in the sky with the moon seen in the background, in London, Britain January 19, 2016. (Photo by Toby Melville/Reuters)
An Egyptian passenger sits on the locomotive of a train as it leaves Cairo train station in Egypt, Wednesday, October 14, 2015. (Photo by Amr Nabil/AP Photo)
Flying squirrels are not capable of powered flight like birds or bats; instead, they glide between trees. They are capable of obtaining lift within the course of these flights, with flights recorded to 90 meters (295 ft). The direction and speed of the animal in midair is varied by changing the positions of its two arms and legs, largely controlled by small cartilaginous wrist bones. This changes the tautness of the patagium, a furry parachute-like membrane that stretches from wrist to ankle. It has a fluffy tail that stabilizes in flight. The tail acts as an adjunct airfoil, working as an air brake before landing on a tree trunk.
This Thursday, June 29, 2023, image provided by Virgin Galactic shows the Virgin Galactic's rocket-powered spaceplane during a research flight before gliding back down to Spaceport America in southern New Mexico. With the research flight complete, Virgin Galactic plans to begin commercial flights with paying ticket holders in August. (Photo by Virgin Galactic via AP Photo)
A passenger inter-island ferry Shuttle RoRo 5 is pictured after it was swept ashore at the height of Typhoon Nock-Ten in Mabini, Batangas in the Philippines December 26, 2016. (Photo by Erik De Castro/Reuters)
Vehicles move past a man resting on a taxi, as he waits for passengers, along a road in Karachi, Pakistan, May 5, 2015. (Photo by Akhtar Soomro/Reuters)
Over 30 Douglas C-47 Skytrains (Dakotas) making final preparations for flight formation practice before the 75th D-Day Anniversary flight to Normandy in Duxford, England on June 4, 2019. (Photo by UK Air Force Images)