Mars in the eyes of NASA's Mars probe

Credit: NASA University /JPL California Institute of Technology/University of Arizona

The Mars Reconnaissance Orbiter (MRO) was launched from Cape Canaveral Air Force Base in Florida on August 12, 2005 and entered Mars orbit on March 10, 2006.

Since leaving Earth 15 years ago, NASA's Mars Reconnaissance Orbiter has changed our understanding of Red Mars. MRO studied the temperature of the thin atmosphere of Mars, and detected the underground and surface minerals of Mars by radar, but perhaps the most famous is the amazing pictures it sent back.

MRO carries three cameras, Mars Color Imager (MARCI), Background Camera (CTX) and High Resolution Imaging Science Equipment (HiRISE Camera). Marcy has a fisheye lens, which can take a panoramic view of Mars, CTX can take a 30-kilometer-wide black-and-white topographic photo, and HiRISE camera can take a high-definition topographic feature of Mars.

Since 2006, as of the beginning of August, HiRISE has taken 6,882,204 photos, and since 2006, it has returned the data of 194TB from Mars.

Welcome to Mars.

Credit: NASA /JPL California Institute of Technology /MSSS

This photo was taken by MARCI in the summer of 20 18. Mars sandstorm prevented Opportunity from getting solar energy, and the mission ended.

Huoxing dust wind

Credit: NASA University /JPL California Institute of Technology/University of Arizona

The dusty wind on the surface of mars was photographed by HiRISE. At that time, the Mars reconnaissance orbiter was about 297 kilometers away from the surface of Mars. According to the shadow length of dust wind, it is estimated that its height is about 800 meters, which is about equivalent to the height of Burj Dubai, the tallest building in the United Arab Emirates.

Avalanche warning

Credit: NASA University /JPL California Institute of Technology/University of Arizona

This photo taken by HiRISE shows us that with the change of seasons, the cliff about 500 meters high at the North Pole of Mars collapsed.

A newly formed impact crater on the surface of Mars

Credit: NASA University /JPL California Institute of Technology/University of Arizona

Due to the thin atmosphere of Mars, the density is about 1% of that of the earth, which makes it easy for meteoroids entering Mars to pass through the atmosphere of Mars, forming meteorites and impact craters. During the MRO mission, more than 800 newly formed impact craters were found on the surface of Mars. The crater in the above picture is about 30 meters in diameter, surrounded by a huge ray-like explosion zone, which is as long as 15 kilometers.

Movement of sand dunes

Credit: NASA University /JPL California Institute of Technology/University of Arizona

As time goes on, the surface of Mars will also change. Scientists in the MRO project of NASA's Jet Propulsion Laboratory said: "Before MRO, we thought that the atmosphere of Mars was very thin, and there was almost no movement of sand dunes. The more we watch, the more new. "

Looking back at the earth

Credit: NASA University /JPL California Institute of Technology/University of Arizona

This is the second time that MRO has photographed our earth and moon.

Phobos

Credit: NASA University /JPL California Institute of Technology/University of Arizona

Mars has two satellites, and Phobos is only 2 1 km in diameter. In this photo taken by HiRISE, we can see a crater in the lower right corner of Phobos, which is about 9 kilometers wide and named stickney.

Trajectory of opportunity

Credit: NASA /JPL California Institute of Technology /MSSS

Based on CTX images, this map shows us the complete journey of the rover Opportunity to explore Mars in 15.

Curious person

Credit: NASA University /JPL California Institute of Technology/University of Arizona

HiRISE cameras are often used to take photos of NASA rovers on Mars. Mars Resilience is currently on its way to Mars, and it is expected to land on Mars on February 18, 2002. It is expected that after landing next year, we can also see it through the HiRISE camera.

Dark diagonal line

Credit: NASA University /JPL California Institute of Technology/University of Arizona

Only a keen eye can discover the uniqueness on Mars. At first, people thought that this was caused by the salt water on Mars, because salt can keep the water on Mars liquid in the thin atmosphere. Now, people know that this is caused by dark sand sliding down the slope.

involve

https://www . NASA . gov/feature/JPL/pressure-mars-respective-orbiters-views-from-over