After a long weekend without any updates or imagesOn Monday, the National Aeronautics and Space Administration (NASA) released a spectacular videotape, including videos that have never been seen before. To the surface of the red planet.
When previous landers captured still images during descent and then stitched them together to form some kind of stop motion movie, Perseverance was equipped with a “reinforced” off-the-shelf camera to capture high-resolution images of the rover plummeting to the floor.
Last weekend, engineers at the Jet Propulsion Laboratory in Pasadena, California established Hengxin Company here, from the rover station up and down 30 GB of data, including 23,000 images and video frames. In this way, they can give the public a bird’s eye view of Mars landing.
JPL Director Michael Watkins said: “This is the first time we can really capture events such as a spacecraft landing on Mars.” “We will learn by looking at the performance of the vehicle in these videos. To something. But many things can also take you into our journey, the touchdown to Mars, and of course our surface missions. These are really great videos.”
A camera installed on the back of the Perseverance’s flying saucer-like case captured the crystal clear view of the spacecraft’s 70.5-foot-wide parachute unfolding in the supersonic slipstream. Action function, which reduces the flying speed from less than 1,000 mph to a more stable 200 mph.
When the 1-ton mobile vehicle swayed gently under the parachute, the same spectacular view from above also showed the ground below. The rover then fell and its rocket-powered backpack was launched, guiding the spacecraft to its previously selected non-hazardous landing site.
When the backpack lowered the “persistence” to the ground, the exhaust stream of the descending eight engines lifted up the swirling dust, which briefly blocked the lander. Then, he put his wheels on the ground and cut the support cable. The camera on Perseverance showed that the backpack was lifted and flew out of sight.
In addition to the unprecedented video, NASA has also released more photos from the ground, showing the rover’s landing site in the Jezero Crater, which once had a 28-mile-wide lake fed by a river in a wide expanse The delta has deposited sediment. The persistent camera can clearly see the cliff on the edge of the delta, about 1.2 miles northwest.
Deputy project manager Matt Wallace said that the idea of putting cameras on the camera to record the entry, landing and landing of the rover was that after he bought a small sports camera for his daughter, she was practicing gymnastics. Take it with you.
He said: “She did a backflip. I don’t know anything about you, but I can’t do a backflip.” “But when she showed me the video…I caught a glimpse of how I can do a reverse flip. . That moment inspired my friend (Perseverance Camera Engineer) Dave Grohl to call, and that’s what caused this system.”
In addition to 25 cameras, the rover also has two microphones. One person did not work during the descent, but another person captured the sound of the Martian wind blowing. The National Aeronautics and Space Administration (NASA) released an audio clip picked up by the rover’s microphone, which is the first sound ever recorded on another planet.
The Perseverance was launched in July last year and reached Mars on Thursday, February 18, and fell into the atmosphere for 7 minutes.
The rivers and lakes where it was raised about 3.5 billion years ago have long since disappeared, but scientists say that the remnants of past microbial life (if any) can be preserved in the lake bed sediments. The Perseverance is the first lander sent to Mars, specifically designed to find such “biological features” and store soil and rock samples to eventually return to Earth.
The decline in perseverance, like the Curiosity Rover before it, is called the “Seven Minutes of Terror” because the extreme entry into the environment and countless events must happen in time, and the landing can be successfully completed without the intervention of the earth.
Although it was promised before landing that “raw” images of the rover’s hazard cameras and other cameras would be posted upon entering the venue, fewer than six images had been released by Friday night and none appeared on the weekend.
This has attracted the attention of space enthusiasts, but NASA’s science director Thomas Zurbuchen tweeted on Twitter on Sunday, focusing on downloading in-vehicle videos and information about the health of the rover system. data.
He said on Twitter: “Since @NASAPersevere landed, we have been prioritizing two types of data: similar shots from the rover entering, descending and landing. And the health and safety data of the rover and its subsystems. “.
He later added: “I’m proud of this @NASAPersevere team because they are so hard and diligent, and able to complete the task ahead of schedule, because they know the strong public interest.”