Home / Science / NASA receives the first weather report from Perseverance rover on Mars.

NASA receives the first weather report from Perseverance rover on Mars.



Perseverance, launched from Earth on July 30, arrived at the Red Planet in mid-February and has been exploring the Martian surface and collecting different types of data.

Of these, weather data, which scientists say, will shape what we know about the radiation processes and the water cycle in Mars’ atmosphere better, not much, but the water trapped beneath the ice cap. The solid carbon dioxide at the poles can evaporate in the summer and enter the atmosphere. Part of the plan with perseverance is unlocking clues about what happened after.

Endeavors lie in Mars̵

7; Jezero Crater, the location NASA chose for the rover’s landings, with a vast, barrier-free area and the presence of a dry delta 3.5 billion years ago.

On Saturday and Sunday, the Mars Environmental Dynamics Analyzer, or MEDA, reported temperatures of minus 7.6 degrees and a low of minus 117.4 degrees, compared with the coldest temperature measured on Earth – minus -128.6 degrees observed at the station. Vostok weather inspected in Antarctica on July 21, 1983.

At least the winds on Mars are pretty dull, with gusts of just 22 mph. But imagine that the wind is cold …

The MEDA probe is for temperatures at four different levels: 2.76 feet, 4.76 feet, and 98.43 feet surface.While it is barely touching the surface of the lower atmosphere, the MEDA is expected to provide insights into the Mars radiation budget. In other words, scientists will learn how sunlight hitting the surface converts into incoming heat and circulates through the atmosphere.

Persistence is not the first spacecraft to return weather observations from the Martian surface. Curiosity, which landed in 2011, was damaged by one of the wind sensors. That means it can measure wind speed. But not the direction of the wind Because persistence can tell where the wind is coming from, scientists hope to use the observations, along with measurements of curiosity and satellites, to learn about Mars’ general atmospheric circulation.

In the short term, one of the greatest benefits to scientists is Perseverance’s observational potential to inform mission-critical decisions and eventually when the famous Ingenuity helicopter will be tested. The helicopter was once stuck in a hell of perseverance, where it was kept for its expedition to Mars on March 21.

Ingenuity’s first flight was scheduled no earlier than Sunday, touching later than Thursday initially expected. Although the helicopters are fully functional, flying on the Red Planet is not an easy task.

The atmosphere, which is largely composed of carbon dioxide, is barely 1 percent of the Earth’s density. Helicopters on Earth cannot go high because the air is too thin. Imagine that factor is multiplied by 50 on Mars.NASA tests its intelligence in a vacuum chamber at the Jet Propulsion Laboratory in California.

The effect is severely offset by Mars’ weaker gravity, about a third of the Earth. Still, working to build a helicopter that can fly on Mars takes years of engineering. Even the global temperature has to be taken into account; Extreme cold can “freeze and crack unprotected electrical components,” NASA wrote.

And before it roam, NASA plans to do a flight test to make sure everything is in order. Simply deploying a helicopter to the Launchpad takes 6 days and 4 hours during the final phase of use. Perseverance recharges Ingenuity’s batteries before the cables are cut; The rover then drove away, letting sunlight shine through the helicopter solar panels to recharge.

During Ingenuity’s first test flight, its propellers spin at speeds of over 2,500 rpm and the helicopter soars through the thin atmosphere for just 10 feet. After hovering for up to 30 seconds, the system taps back down. NASA scientists will spend a few days collecting data and reviewing flight performance before undertaking more complex operations in the future.

In the meantime, the scientists will continue to wait for more detailed weather data from Perseverance and determine the ideal flight limits for helicopters. The ingenuity weighs just 4 pounds. The lightweight frame can hold a lot of wind.

Assuming the first test flight will take place on Sunday, NASA plans to hold a live broadcast of the results early Monday.


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