NASA Helicopter Makes Historic Test Flight on Mars
2021-04-20
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1NASA's Ingenuity helicopter has successfully completed a takeoff and landing on Mars.
2The U.S. space agency says Monday's flight was historic because it marked the first time any aircraft had performed powered, controlled flight on another planet.
3The flight was announced Monday by flight controllers at NASA's Jet Propulsion Laboratory (JPL) in California.
4The team said it was able to confirm the flight after receiving data and images from its Mars explorer, Perseverance.
5The explorer was carrying Ingenuity when it successfully landed in Mars' Jezero Crater in February.
6NASA said the solar-powered experimental aircraft lifted off the surface of Mars at 10:34 UTC.
7Controllers chose the day and time based on Ingenuity's readiness and when flight conditions were acceptable.
8Ingenuity climbed about 3 meters and hovered for 30 seconds before landing safely on the surface, NASA reported.
9It added that Ingenuity's first flight was autonomous.
10That means the aircraft piloted itself with the help of built-in guidance and control systems developed by JPL's team.
11The space agency said the operation "was full of unknowns" because of the very different conditions on Mars compared to Earth.
12For example, gravity's pull on the surface of Mars is one-third of Earth's.
13And the Red Planet's atmosphere is much thinner, with one percent of Earth's atmospheric pressure.
14To complete a successful flight, engineers said the helicopter's blades needed to spin five times faster than they would have to on Earth.
15The space agency said data must be sent and received from Mars using orbiting satellites and land-based communication systems.
16Because of this, the helicopter "cannot be flown with a joystick," NASA said in a statement.
17The flight of the 49-centimeter tall vehicle also was not observable from Earth as it happened.
18Perseverance acted as a communications link between the helicopter and Earth.
19It also documented Ingenuity's activities with its high-tech imaging equipment.
20Ingenuity itself does not contain scientific instruments.
21It was designed only to demonstrate whether such aircraft could be valuable in future exploration activities on Mars or other planets.
22The first picture captured was a black and white image showing the helicopter's shadow as it hovered above Mars.
23Next came color video of Ingenuity's landing that was taken by Perseverance.
24Acting NASA Administrator Steve Jurczyk praised the successful flight in a statement.
25"Ingenuity is the latest in a long and storied tradition of NASA projects achieving a space exploration goal once thought impossible," he said.
26Additional flight tests are to be carried out, with plans to see if Ingenuity can go a little higher and farther each time.
27NASA said such helicopters could assist astronauts on future search and collection missions.
28NASA has compared Ingenuity's attempt to the Wright Brothers' first flight of a motor-driven airplane near Kitty Hawk, North Carolina, in 1903.
29In recognition of that historic flight, a small piece of cloth that covered a wing from the Wright Brothers plane was attached to the helicopter for its first flight on Mars.
30After Ingenuity's successful flight, project leader MiMi Aung said:
31"We've been talking so long about our Wright Brothers moment, and here it is."
32I'm Bryan Lynn.
1NASA's Ingenuity helicopter has successfully completed a takeoff and landing on Mars. 2The U.S. space agency says Monday's flight was historic because it marked the first time any aircraft had performed powered, controlled flight on another planet. 3The flight was announced Monday by flight controllers at NASA's Jet Propulsion Laboratory (JPL) in California. The team said it was able to confirm the flight after receiving data and images from its Mars explorer, Perseverance. The explorer was carrying Ingenuity when it successfully landed in Mars' Jezero Crater in February. 4NASA said the solar-powered experimental aircraft lifted off the surface of Mars at 10:34 UTC. Controllers chose the day and time based on Ingenuity's readiness and when flight conditions were acceptable. 5Ingenuity climbed about 3 meters and hovered for 30 seconds before landing safely on the surface, NASA reported. It added that Ingenuity's first flight was autonomous. That means the aircraft piloted itself with the help of built-in guidance and control systems developed by JPL's team. 6The space agency said the operation "was full of unknowns" because of the very different conditions on Mars compared to Earth. For example, gravity's pull on the surface of Mars is one-third of Earth's. And the Red Planet's atmosphere is much thinner, with one percent of Earth's atmospheric pressure. To complete a successful flight, engineers said the helicopter's blades needed to spin five times faster than they would have to on Earth. 7The space agency said data must be sent and received from Mars using orbiting satellites and land-based communication systems. Because of this, the helicopter "cannot be flown with a joystick," NASA said in a statement. The flight of the 49-centimeter tall vehicle also was not observable from Earth as it happened. 8Perseverance acted as a communications link between the helicopter and Earth. It also documented Ingenuity's activities with its high-tech imaging equipment. Ingenuity itself does not contain scientific instruments. It was designed only to demonstrate whether such aircraft could be valuable in future exploration activities on Mars or other planets. 9The first picture captured was a black and white image showing the helicopter's shadow as it hovered above Mars. Next came color video of Ingenuity's landing that was taken by Perseverance. 10Acting NASA Administrator Steve Jurczyk praised the successful flight in a statement. "Ingenuity is the latest in a long and storied tradition of NASA projects achieving a space exploration goal once thought impossible," he said. 11Additional flight tests are to be carried out, with plans to see if Ingenuity can go a little higher and farther each time. NASA said such helicopters could assist astronauts on future search and collection missions. 12NASA has compared Ingenuity's attempt to the Wright Brothers' first flight of a motor-driven airplane near Kitty Hawk, North Carolina, in 1903. In recognition of that historic flight, a small piece of cloth that covered a wing from the Wright Brothers plane was attached to the helicopter for its first flight on Mars. 13After Ingenuity's successful flight, project leader MiMi Aung said: "We've been talking so long about our Wright Brothers moment, and here it is." 14I'm Bryan Lynn. 15Bryan Lynn wrote this story for VOA Learning English, based on reports from NASA, The Associated Press and Reuters. Mario Ritter, Jr. was the editor. 16We want to hear from you. Write to us in the Comments section, and visit our Facebook page. 17__________________________________________________________ 18Words in This Story 19hover - v. to stay up in the air but without moving anywhere 20autonomous - adj. independent and having the power to operate automatically without human involvement 21blade - n. an arm of a propeller that spins to lift an aircraft off the ground 22joystick - n. a handle used to control movements of a computer game, machine or aircraft 23shadow - n. a dark shape that appears on a surface when someone or something moves between the surface and a source of light 24achieve - v. to succeed in doing something 25indicate - v. to show that something exists or is likely to be true