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nasa perseverance rover

Image source: NASA Twitter

NASA has unveiled stunning videos of its Perseverance rover landing on Mars.

The videos cover the final minutes of last week’s hair-raising descent, up to the point where the rover’s wheels make contact with the ground.

The sequences show a whirl of dust and grit being kicked up as the vehicle is lowered by its rocket backpack to the floor of Jezero Crater.

Perseverance was sent to Mars festooned with cameras, seven of which were dedicated to recording the landing.

Their imagery represents vital feedback for engineers as they look to improve still further the technologies used to put probes on the surface of the Red planet.

All the cameras employed in the descent and landing were off-the-shelf, ruggedized sports cameras, with next-to-no modifications.

The cameras were positioned to capture key hardware events – from the release of the supersonic parachute, through the jettisoning of the entry capsule’s heatshield and flight of the backpack, or “sky crane”, all the way through to touchdown and the backpack’s disposal.

This corresponded to roughly the final four minutes of the rover’s seven-minute descent to the surface.

One of the three cameras looking up at the parachutes failed, but the other six cameras worked flawlessly. NASA had hoped also to record the sound of the descent with a microphone, but unfortunately this didn’t succeed.

However, the team has managed to get a mic operating on the ground so there is the possibility of hearing Perseverance go about its exploration duties in the coming weeks. Already, the muffled sound of the wind in Jezero Crater has been played back.

Videos have been made at Mars before, but these were low frame-rate affairs – more what you might call “stop motion” action. The Perseverance offering on the other hand is simply jaw-dropping in its clarity and detail.

At the weekend, Perseverance’s navigation mast, which had been stowed flat since leaving Earth last year, was raised into the vertical.

This allowed the main science cameras at the mast’s top, the Mastcam-Z system, to begin building a panorama of the surrounding terrain in Jezero and of the deck of the rover itself. The latter mosaic is wanted to look for any damage that might have been inflicted by flying stones at the time of landing.

NASA’s Perseverance Rover Successfully Lands on Mars

Controllers will this week perform the critical task of transitioning Perseverance away from the software that got it safely down to the surface of Mars to one that enables the robot to rove and use equipment such as its robotic arm.

This is likely to take four Martian days, or Sols (a Martian day lasts 24 hours and 39 minutes). We might see a wheel wiggle and the first test drive of a few meters come the weekend.

A NASA satellite, the Mars Reconnaissance Orbiter, has already identified and photographed the discarded hardware from landing.

Perseverance’s landing spot is in a 1.2km by 1.2km quadrangle that the science team has informally called Canyon de Chelly after the National Monument in Arizona.

Image source: NASA Twitter

NASA’s Perseverance rover has ended end of its seven-month journey from Earth.

The six-wheeled robot in a deep crater near the planet’s equator called Jezero.

Engineers at NASA’s mission control in California erupted with joy when confirmation of touchdown came through.

The robot will now spend at least the next two years drilling into the local rocks, looking for evidence of past life.

Jezero is thought to have held a giant lake billions of years ago. And where there’s been water, there’s the possibility there might also have been life.

It’s got to put itself down safely on the Red Planet – a task that has befuddled so many spacecraft before it.

If Perseverance is successful, it has an amazing opportunity to find signs of past life on Mars.

Never has a science mission gone to the planet with so sophisticated a suite of instruments; never has a robot been targeted at so promising a location.

Jezero Crater bears all the hallmarks in satellite imagery of once having held a giant lake. And where there’s been abundant water, perhaps there’s been biology as well.

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Perseverance will sift and drill into the sediments to look for traces of ancient microbial activity. The most propitious examples will be packaged for return to Earth by later missions.

Matt Wallace, NASA’s deputy project manager for Perseverance, said: “But before we can get that surface mission going, we have to land on Mars and that is always a challenging feat.

“This is one of the most difficult maneuvers we do in the space business. Almost 50% of the spacecraft sent to the surface of Mars have failed, so we know we have our work cut out to get down safely at Jezero.”

The signal alerting controllers that Perseverance was down and safe arrived at 20:55 GMT. In the past they might have hugged and high-fived but strict coronavirus protocols meant they had all been separated by perspex screens. A respectful fist bump was about all they could manage. The robot’s protective capsule will do most of the work of scrubbing off the entry speed but a supersonic parachute and a rocket jetpack, or “Sky crane”, will be needed for the last three minutes of braking and surface placement.

Of the 14 landing attempts at the planet, eight have been successful – all of them American. Indeed, NASA has only got it wrong once, way back in 1999.

Engineers will be following proceedings at mission control at the Jet Propulsion Laboratory in Pasadena, California.

Telemetry from the rover during its descent will be relayed by an overflying satellite – the Mars Reconnaissance Orbiter. The team will also be listening to a series of low-data tones coming back direct from the robot itself.