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Mystery of Mars' missing water could be solved by the planet's tipsy tilt

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80% Informative

Astronomers think most of Mars ' scant water reserves are frozen within fine-grained surface dirt.

The Red Planet's tilt hasn't remained stable over the past several million years .

Today , Mars ' tilt is 25.2 degrees relative to its orbital plane around the sun, similar to Earth 's 23.5 degrees .

Deepa Jain is a freelance science writer from Bengaluru , India .

She enjoys writing about astronomy, the natural world and archaeology.

She has an almost-completed bachelor's degree in archaeology from the University of Leicester , UK , and a master's degree from Indian Institute of Science , Bengaluru .