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Open up this picture fully. Then look at the surface of Mars. Then look up to the top right. Spot Mars' moon Phobos high in the sky. Then notice the bright spot beside Phobos. That's Earth.

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This image (a composite of five short and 12 long exposures) was taken by NASA's Curiosity rover on 5 September 2024. In the foreground is part of Mount Sharp, the central mountain in Gale Crater. Phobos orbits Mars at an altitude of about 6,000 km; at the time, Earth was 98.7 million km away.

"Yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic, regarded this earth with envious eyes, and slowly and surely drew their plans against us."

I love that Mars's moon looks like our moon, and we look like any other planet. It also does a crescent and we also shine. I know that makes sense, that's how space works, but it really drives home how both Mars and Earth are both just places in space.

The angle distance between the Earth and Moon from Mars is tiny and variable. It would take very good vision and the right time of the month as well as relative position of the planets.