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Mars
Planets

Mars

The rusty red frontier

A cold desert world with the largest volcano and canyon in the solar system. Mars once had rivers and lakes — and may still hold traces of life beneath its surface.

Image: ESA / Rosetta

Vital statistics

Moons
2 (Phobos, Deimos)
Gravity vs Earth
0.38 g
Day length
24h 37m
Year length
687 Earth days
Diameter
6,779 km
Surface Temp
-63 °C avg

Did you know

Olympus Mons is 22 km tall — 2.5× higher than Everest.

Fact 01

Valles Marineris is a canyon 4,000 km long.

Fact 02

Dust storms can engulf the entire planet for months.

Fact 03

Research & publications

Jump straight into peer-reviewed papers, preprints and authoritative references for Mars.

Tip: ask the Research AI for a curated reading list → /research

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