The china national space administration released images returned by the Tianwen-1.

    On the occasion of new year's day in 2022, the China National Space Administration(CNSA) released a set of exquisite images transmitted from distant mars by the Tianwen-1 probe, china's first mars exploration mission, including two spectacular selfies taken by the mission’s orbiter circling the planet.

    The artificial satellite was able to take a picture of itself by releasing a special camera into space on a one-way journey.

    This set of images includes a group photo of the orbiter and mars, a local close-up of the orbiter, the arctic ice sheet of mars, and the fire surface landform photographed by the "Zhurong" rover, showing the working state of the orbiter.

Tianwen-1 probe.


    in figure 1, the orbiter is flying over the north pole of Mars, the orbiter body is golden, the directional antenna that communicates with the ground at high speed is silver (below the orbiter body), and the solar wing is well deployed. the white area on mars is the "ice" field covering the north pole, and unlike the ice at the poles of the earth, the "ice" of mars consists of dry ice (solid carbon dioxide) and water ice. the dark area below mars is the martian Olympiashapo, the bright ring crater in the upper left corner is called Korolev crater, and the rest of the red and dark areas are bare surfaces.
figure 2: local close-up of the surrounder


    in figure 2, the solar wing on one side of the orbiter is fully extended and stable. an expanded subsurface detection radar antenna parallel to the solar wing, the magnetometer rod protruding toward the upper left of the orbiter.

figure 3: the martian arctic ice sheet


    figure 3 shows the north pole ice sheet of mars, which is clearly visible. after years of sedimentation and ablation, it takes on a spiral-like landscape centered on white ice and bare surfaces centered on poles.

figure 4: the "zhu rong" rover photographs the fire surface landform


    figure 4 is made up of three images recently obtained by the zhurong rover using the navigation terrain camera, and typical landforms of mars such as ring craters and rocks can be seen.

    As of December 31, 2021, the Tianwen-1 orbiter has been in orbit for 526 days, currently about 350 million kilometers from Earth, with a communication delay of about 19.5 minutes; the rover has worked on the surface of Mars for 225 Martian days, with cumulative travel of more than 1400 meters. At present, the Tianwen-1 mission is carrying out exploration and related tests as planned, sending back a total of about 560GB of raw scientific data, and the two devices are in good condition and running normally.

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