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You’re familiar with the close-up images of Earth captured by orbiting satellites, but what does our Earth look like from another planet? Imagine you were a Martian astronomer, peering through your backyard telescope at the bright planet Earth.
Here’s Earth and the Moon, seen from the orbit of Mars by NASA’s Mars Global Surveyor spacecraft.
This is a very similar image. Once again, you’re seeing Earth and Mars – this time from ESA’s Mars Express spacecraft. This was actually one of the first images that Mars Express took when it arrived in orbit around Mars.
This one’s hard to see, but it’s an image of Earth, captured by NASA’s Opportunity rover, down on the surface of Mars. If you could stand down on the surface of Mars and look at Earth with your own eyes, this is what you might see.