On July 27, 2020, the tianwen-1 probe flew about 1.2 million kilometers away from the earth, and used the optical navigation sensor to image the earth and the moon to obtain a clear image of the earth and the moon. In this black-and-white image, the earth and the moon, both large and small, are crescent shaped, accompanying each other in the vast universe. When it comes to the photo of the earth and the moon, there are many classic works. Like the above picture, they were taken by spacecraft from all over the world.

on October 28, 2014, chang’e-5 T1 flight tester (reentry and return flight tester for phase III of lunar exploration project) started several cameras to shoot the moon and earth for many times under the control of Beijing aerospace flight control center, and obtained clear Earth Moon composite images.

in 2019, a picture of “Earth Moon group photo” taken by Chinese students was published in science. This picture, which was called “one of the best Earth Moon group photos” by foreign media, came from the small satellite team of Harbin Institute of technology. They independently developed the lunar orbiting ultra long wave astronomical observation microsatellite “longjiang-2”, and took this picture through the micro CMOS camera installed on it 。

on September 18, 1977, NASA’s Voyager 1 captured this crescent shaped picture of the earth and the moon. Voyager 1 was right above Mount Everest when the photo was taken.

in October 2007, NASA’s Mars Reconnaissance Orbiter (MRO) took an image of the earth and the moon with HiRISE camera. When the image was taken, the earth was 142 million kilometers away from Mars.

on May 6, 2010, NASA’s messenger mercury probe looked back from its orbit around Mercury and took this picture. The spacecraft was 183 million kilometers away from Earth at that time.

in July 2015, the deep space climate observation satellite “dscovr” took a photo of the earth and the moon, which captured the moment when the moon passed in front of the earth.

on November 26, 2015, the Japanese asteroid probe “falcon 2” took a picture of the earth and the moon as it accelerated near the earth on November 26, 2015. At that time, the “falcon 2” was about 3 million kilometers away from the earth. The moon and the earth were in the lens of the Falcon 2 optical navigation telescope camera (ONC – t). The gray dot on the left was the moon, and the larger blue dot on the right was the earth.

on October 2, 2017, NASA’s source spectral interpretation resource safe weathering layer identification probe (Osiris Rex) used an annular field camera to photograph the moon and the earth on its way to the asteroid “Benu”. At the same time, a computer will be used to render a number of images, resulting in this “Earth Moon group photo.”.

generations of spacecraft of various countries have looked back at mankind from the universe, leaving behind these precious group photos. In addition to taking beautiful photos, they all have more important tasks. For example, tianwen-1, which took pictures of the earth and the moon, took the first step in China’s independent planetary exploration. Let’s look forward to a clearer picture of Mars and the surface of Mars!