NASA shares beautiful view of Earth and its Moon, as seen from Mars

Image Credits: NASA/JPL-Caltech/Univ. of Arizona

New Delhi: The US space agency NASA has released a very beautiful image of our planet, Earth and its Moon, as seen from the Red planet, showing the continent-size detail on the planet and the relative size of the moon.

The image was taken on taken on Nov. 20, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter and combines two separate exposures.

In the image, the reddish feature near the middle of the face of Earth is Australia. When the component images were taken, Mars was about 127 million miles (205 million kilometers) from Earth, says NASA.

According to the US space agency, the pictures were taken to calibrate HiRISE data, since the reflectance of the moon's Earth-facing side is well known. The exposures were processed separately to optimize detail visible on both Earth and the moon. The moon is much darker than Earth and would barely be visible if shown at the same brightness scale as Earth.

The combined view retains the correct positions and sizes of the two bodies relative to each other. The distance between Earth and the moon is about 30 times the diameter of Earth. Earth and the moon appear closer than they actually are in this image because the observation was planned for a time at which the moon was almost directly behind Earth, from Mars' point of view, to see the Earth-facing side of the moon.