Posted on by Evan Gough

A Collapsed Martian Lava Chamber, Seen From Space

This HiRise image of Hephaestus Fossae shows a volcanic area that's collapsed into a pit. We should explore it. Image Credit: NASA/JPL-Caltech/UArizona

Lava tubes and chambers attract a lot of attention as potential sites for bases on the Moon and Mars. They provide protection from radiation, from temperature swings, and even from meteorites. They beg to be explored.

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Posted on by Evan Gough

There are Natural Features on Mars That Could Serve as Radiation Shelters

An image of butte M9a in Murray Buttes on Mars, captured with MSL Curiosity's MastCam. Image Credit: NASA/JPL-Caltech/MSSS

Mars is bombarded with radiation. Without a protective magnetic shield and a thick atmosphere like Earth’s, radiation from space has a nearly unimpeded path to the Martian surface. Our machines can roam around on the surface and face all that radiation with impunity. But not humans. For humans, all that radiation is a deadly hazard.

How can any potential human explorers cope with that?

Well, they’ll need shelter. And they’ll either have to bring it along with them or build it there somehow.

Or maybe not. Maybe they could use natural features as part of their protection.

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