Jason Pineau, Yellowknife, Northwest Territories
De Havilland DHC-6 Twin Otter rests under a thin band of aurora borealis on Point Lake, Northwest Territories.

Perttu Karivalo ,Oulu, Finland
Finnish Army Aviation NH90 helicopter, with Maj. Jaro Kesanen at the controls, winches rescue divers to a Finnish border patrol boat on the high seas about 15 nm from Oulu, Finland, during the Shark 2011 Search and Rescue Exercise. The patrol boat was cruising at 15 kt. with a 15-kt. head wind, so the helicopter was flying at 30 kt. sideways and 12 ft. over the boat.

Geoffrey Lee, Camberley, England
Flight Lt. Dan Hayes flies RAF 1 FTS 2011 Tucano, which is based at RAF Linton on Ouse, Yorkshire, England.

Jay Beckman, Chandler, Ariz.
The "Digi Hornet" from VFA-122 Flying Eagles emerges from its own vapor cloud over EAA AirVenture 2011 in Oshkosh, Wis.

Bill Congdon and Steve Moon, Centennial, Colo.
An experimental heat shield-aeroshell for a NASA planetary entry vehicle undergoes a ground test with a heating rate of 150 watts per square centimeter.

Ben Cooper, Daytona Beach, Fla.
Atlantis spends its final night on the Kennedy Space Center launch pad in the pouring rain on the eve of the 135th and final space shuttle launch.

Ben Cooper, Daytona Beach, Fla.
An overhead view of Endeavour before the penultimate space shuttle rollout from the Vehicle Assembly Building to the launch pad at Kennedy Space Center.

Leonid Faerberg, Moscow, Russia
Airbus A380 performs a low-visibility flyover at the MAKS-2011 air show at Zhukovsky, Russia.

Nicholas Wilkinson, Manchester, England
Ryanair Boeing 737-800 takes on passengers, luggage and fuel at Liverpool John Lennon Airport in England.

Ognyan Stefanov, Sofia, Bulgaria
Thomas Cook Airlines Boeing 757-200 prepares for takeoff from Sofia on a foggy night.

Rod Reilly, Suwanee, Ga.
Stefan Hokof paints the name Twilight Tear on P-51D N25IL at EAA AirVenture 2011.

Jim Koepnick, Oshkosh, Wis.
Amy Gesch takes off in her Dakota Cub on skis.

Alain Ernoult, Bagneux, France
Experimental Eurocopter X3 hybrid leaves its wake on water below.

Tamas Kolos-Lakatos, Cambridge, Mass.
Airport fire trucks at Budapest, Hungary, greet a KLM Boeing 737-900 in SkyTeam livery as the alliance celebrated the opening of a new ticket office there.

Jay Beckman, Chandler, Ariz.
"Sentimental Journey" from the Arizona Wing of the Commemorative Air Force and "little friends" cross over Red Mountain in Mesa, Ariz.

James N. Brown, Covington, Ga.
The final space shuttle mission provided a rare opportunity to photograph the orbiter Endeavour from high atop the Rotating Service Structure, following rollout.

Jamie Hunter, Woking, England
An F-15C of the USAF 65th Aggressor Sqdn. turns and burns as the pilot attempts to evade an F-22A Raptor.