A plane with no engine has managed to fly higher than any commercial flight, and is on track to beat any plane.
Airbus's mission II of Perlan set a new world altitude record reached by a glider, the third in just one week.
The volunteer team that runs and maintains Perlan II reached 63,100 feet on August 26, 65,500 two days later and 76,124 feet on Sunday.
Perlan II, a non-powered aircraft, was designed to reach 90,000 feet, higher than any manned aircraft ever flown. For context, a commercial airplane flies at about 45,000 feet.
Perlan Mission II (pictured) has broken three world records in a week reaching unprecedented heights
The volunteer team has flown the unpowered glider up to 76,000 feet tall and aims at 90,000 feet
The glider was built to gather information about high-altitude air currents, the force that allows Perlan to reach such high heights, with the hope that it can help commercial pilots navigate invisible areas of turbulence, NBC reported.
Each flight is manned by two people. In the picture is Morgan Sandercock in the glider
The plane is carried to high altitudes on rare air currents, formed by mountain winds that combine with the polar vortex, an Airbus statement said.
It weighs only 1,500 pounds, and two people have been on each flight.
Jim Payne, flew on each flight in the record week, told NBC that it was surreal to be so high in the sky.
"The biggest impression is that it is very far from here," he said.
"The horizon begins to have a curvature and the sky darkens as we ascend."
"It's a fantastic experience, once in a lifetime."
Pilot partner Jim Payne says that as the plane flies higher and higher, the views become more surreal, and the horizon begins to curve
Perlan II will fly until mid-September, when the rare air currents, formed by mountain winds that combine with the polar vortex, will disappear.
Perlan II will continue to fly until mid-September, when it is expected that the air currents that drive the plane higher and higher stop.
At that time, the team expects the glider to reach 90,000 feet, which allows it to take the altitude record for a manned aircraft.
The record is currently in the hands of the SR-71 Blackbird, an American warplane that travels more than three times the speed of sound and has previously reached 85,069 feet.
The Perlan mission will help commercial pilots navigate difficult and invisible areas of turbulence
If Perlan II can reach 90,000 feet, it will be as high as a manned plane has flown