Flurry of photos capture China’s Zhurong rover on surface of Mars

Nature

  • NEWS

Flurry of photos capture China’s Zhurong rover on surface of Mars

Surface of Mars with the Zhurong Mars rover surrounded by a blast pattern and its parachute and backshell lying a distance away

Zhurong and its landing site captured by NASA’s Mars Reconnaissance Orbiter. The green specks are the lander and rover.Credit: NASA/JPL/UArizona

China’s Zhurong rover has been snapped by powerful cameras aboard several spacecraft circling Mars. One of the images — a high-resolution colour shot (above) taken by NASA’s Mars Reconnaissance Orbiter (MRO) — offers scientists an extremely detailed view of the landing site.

“It’s incredible!” says Peter Grindrod, a planetary scientist at the Natural History Museum in London. The image, taken on 6 June, also reveals Zhurong has made reasonable headway, travelling 22 metres from the lander. “Driving on Mars appears to be going OK,” he says.

The image, snapped by the MRO’s High Resolution Imaging Science Experiment (HiRISE), offers the best look so far at hazards and scientific targets on the surface, says Alfred McEwen, a planetary scientist at the University of Arizona in Tucson, and principal investigator for HiRISE’s camera.

Further images in black and white, released by the China National Space Administration (CNSA) on 7 June, were taken by the Tianwen-1 spacecraft that carried Zhurong to Mars. At lower resolution than NASA’s image, they show the rover’s landing site, both before and after it arrived. And today, the CNSA released another series of images, including one of the rover and lander taken by a detachable camera that the rover released ten metres from the platform (below). Other images taken by cameras fitted on the rover include a 360-degree panorama from atop the lander, and another of the platform from some six metres away.

Photo taken by the Zhurong Mars rover of itself and its landing platform on the surface of Mars

Zhurong took this selfie using a detachable camera it released onto the ground. Credit: Jin Liwang/CNSA/Xinhua/ZUMA Press

Zhurong landed on 15 May and is nearly one month into its mission. On 22 May it drove off a ramp on the lander, and the CNSA confirmed its instruments were operational.

Spotting features of interest

NASA and the CNSA are not collaborating on this mission, but McEwen says the HiRISE image could be used by Chinese researchers to help plot Zhurong’s route. “Maybe they will see something of interest,” he says.

The HiRISE image shows the lander and rover, in false colour, as green specks in a sea of red dust. A darker patch around the lander is probably a blast pattern created by engine plumes during landing.

Brighter curved features are probably sand dunes known as transverse aeolian ridges. In an uncropped version of the image (not pictured), HiRISE also captured the discarded parachute, as well as the remains of the entry capsule.

As predicted from historic shots of the landing site examined after the rover arrived, and images taken by Zhurong itself, the terrain appears to be smooth, flat and perfect for driving on, says McEwen.

Image with two panels showing the surface of Mars before (left) and after (right) the Chinese Mars rover Zhurong has landed

CNSA Images showing the surface of Mars before (left) and after (right) Zhurong landed.Credit: CNSA

In the CNSA image (above, right) the lander and smaller orbiter are visible as two white specks in the darker ink splat of the blast pattern. Bright spots lower down in the image are the capsule, heat shield and a parachute, which helped slow its descent through Mars’s atmosphere. Small craters and bright dunes stud the landscape — these are also visible in the new images taken by Zhurong.

Within Zhurong’s range

Both the CNSA and NASA images reveal features of interest, says Joseph Michalski, a planetary scientist at the University of Hong Kong. To the east of the rover is a small crater and a half-metre-sized boulder, probably ejected from the crater.

Some 50 metres south is a large, bright sand dune, of a type that has not been closely studied before, says Xiao Long, a planetary geologist at the China University of Geosciences in Wuhan, who hopes this will be Zhurong’s first stop.

Michalski says that a larger, 200-metre-wide crater a few hundred metres to the north is scattered with rocks ejected by the impact that created it, which could reveal what is present just below the planet’s surface.

And this is probably within the rover’s range, he says. A similar Chinese rover on the Moon, known as Yutu-2, has travelled more than 700 metres in more than 2 years, offering a sense of what might be possible for Zhurong (see image below).

Topographic image of Mars surface showing landing site of the Chinese Mars rover Zhurong

A false colour image of the landing site from Joe Michalski shows the change in elevation and distance the rover is likely to cover.Credit: NASA/MSSS& ESA/DLR

McEwen says his team soon plans to publish a stereo-pair image, showing two slightly different views of the landing area, which can be combined to reveal the three-dimensional shape of the surface. They also plan to capture features west of the existing image, including a pitted mound some 7 kilometres away that could be a mud volcano.

Nature Briefing

An essential round-up of science news, opinion and analysis, delivered to your inbox every weekday.





Products You May Like

Articles You May Like

REAL TIME – Corona Virus Statistical Data (Worldwide)
Exodus Orbitals is developing an open satellite platform
Just a speed bump? Oil has taken a dive, but Goldman is still bullish
Typhoon In-fa Could Bring Potentially Catastrophic Impacts Along China’s East Coast
How to win big for the climate: rein in the ‘super polluters’
Jack Dorsey says bitcoin will be a big part of Twitter’s future

Leave a Reply

Your email address will not be published. Required fields are marked *