There's just one catch.

Tube Livin'

One of the most significant challenges facing would-be Mars settlers is the constant bombardment of deadly cosmic radiation they would face.

But a team of planetary scientists from the Washington Academy of Sciences has an idea for how to keep safe on the Red Planet, Live Science reports: In order to avoid the cosmic rays, they suggest building settlements inside underground caverns called lava tubes — and they say they've picked out the perfect spot.

House Hunters

The researchers' dream neighborhood: a deep impact basin called Hellas Planitia, near the equator, where radiation levels are lower than other places on Mars, according to Live Science.

After identifying three structures that seem to be lava tubes based on images taken by NASA's Mars Reconnaissance Orbiter, the team tested out their radiation shielding hypothesis on lava tubes in three U.S. states. The tubes blocked as much as 82 percent of the solar radiation that reached the Earth's surface, according to their research, which has been accepted by the Journal of the Washington Academy of Sciences.

Dangerous Neighborhood

This isn't the first time experts have suggested using lava tubes to settle a new world: Japan's space agency, for instance, had the same suggestion for a Moon settlement in 2017. But despite the idea's popularity, Live Science reports that it still puts would-be settlers at risk.

Even with the below-average radiation levels in Hellis Planitia and the shielding of the underground tunnels, settlers would face dangerous levels of cosmic radiation, meaning they'll need more support before they head out.

READ MORE: These lava tubes could be the safest place for explorers to live on Mars [Live Science]

More on lava tubes: Scientists Want Us to Live in Lava Tubes on the Moon

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