NASA’s next Mars rover was not quiet during the long trek to the Red Planet.
A microphone on board Tuesday 2020 Rover PerseveranceIt was launched on July 30 and will touch on February 18, 2021, capturing the sound of the car-sized robot’s “heat-rejecting liquid pump”, the newly released NASA audio file reveals.
Entry into Perseverance, Descent and Landing (EDL), “Seven minutes of terror“The sequence ends with lowering the rover to Mars on a rocket-powered Sky Crane cables.
That sound does not travel through the vacuum of space; Sound waves need a medium to propagate. In this case, the waves traveled through the body of the diligent, causing the mechanical vibrations recorded by the microphone.
I apologize to the person who came up with the slogan “Alien” and I think you can tell that no one can hear you screaming in space, but they can hear your heat-rejecting liquid pump, “said Dave Cruel, lead engineer for Mars’ 2020 EDL camera and microphone subsystem. Said in a statement Wednesday (Nov. 18).
“The bigger the audio file, the more important the sound file is,” Cruel added. “Landing on Mars means that our system is operational and ready to record some noise and anger.”
The heat-rejecting liquid pump is part of the diligent heating system that will keep the rover and its equipment hot on Mars, which will spread the heat generated by the mission’s nuclear battery, NASA officials said in the report.
Diligence will explore the site of the 28-mile-wide (45-kilometer) Jesero gorge, which in ancient times blocked a lake and a river delta. The rover represents the geography of the site and hunts for ancient signs Mars planet And models for future missions to return to Earth.
Diligence will also test technologies for future exploration of the Red Planet. For example, one of the rover’s instruments, called the MOXIE (abbreviated as “Mars Oxygen ISRU Experiment”), will produce oxygen from the thin, carbon dioxide-dominated Martian atmosphere. NASA officials say that if such equipment is measured, it could help humanity to set foot on the Red Planet.
Flying to Mars attached to the belly of perseverance is a small one Helicopter ingenuity. If all goes according to plan, 4-LP. (1.8 kg) will make some short test flights on the Intermediate Red Planet, the first rotorcraft to operate alien skies.
Built by the Danish company DPA Microphones, the EDL Mic is not the only audio tool of diligence. Rover has a second microphone designed to record sounds created by its rock-japping super game.
If These microphones At work, they will be the first person to record real audio on Mars. (NASA’s Insight lander captured The “sounds” of the Martian wind After its 2018 Touchdown, but that recording processed data was collected by air pressure sensor and seismometer measurement.)
But the new microphones did not fly first on the Red Planet mission. NASA’s Mars Polar Lander spacecraft crashed during its Touchdown attempt in December 1999, sending a mic. NASA’s Phoenix Lander, which supported its 2008 water hunting mission, built a microphone into its descent camera. But the Phoenix team Never run that tool, Worried that its use would complicate the landing process.
Mike Wall “Out there“(Grand Central Publishing, 2018; explained by Carl Tate), book on the search for alien life. Follow him on Twitter வால்MichaelWall. Follow us on Twitterspace.com or Facebook.