Martian 'winter wonderland' - Frost, snow and extreme cold on the Red Planet explained

NASA's Jet Propulsion Laboratory talks about frost, snow and extreme temperatures on Mars and what orbiters and landers have taught us about it. [What is the temperature on Mars?](https://www.space.com/16907-what-is-the-temperature-of-mars.html) Credit: NASA/JPL-Caltech