Whether it's the search for ancient microbial life or the dream of building the first Martian city , Mars continues to be our greatest cosmic frontier.

: Thanks to its smaller size, gravity on Mars is only about 38% of Earth's . This means you could jump three times higher than you can right now!

: If you stood on the Martian surface at dusk, you’d witness a blue sunset . Because of the way fine dust in the atmosphere scatters light, the colors are the reverse of Earth: pinkish-red skies during the day and a blue glow around the sun as it sets.

: Mars is home to Olympus Mons , the tallest volcano in the solar system. At roughly 17 miles high, it is three times taller than Mount Everest and about the size of the state of Arizona.

: The Valles Marineris canyon system stretches for 2,500 miles—nearly the width of Australia . In some places, it plunges 6 miles deep , dwarfing Earth’s Grand Canyon.

: Mars is currently the only known planet in the universe entirely inhabited by robots. From veterans like Curiosity to the life-hunting Perseverance , these mechanical explorers are busy uncovering secrets of ancient lakes and organic molecules .