Ocean's worth of water may be buried within Mars — but can we get to it?

An orange and off-green world, cutoff at the poles as it encompasses the whole image.

Enough water to cover the surface of Mars has been discovered within the crust of the Red Planet by NASA's InSight mission. The ocean is buried between one and two kilometers (0.62 and 1.24 miles) underground.

InSight, which was a stationary lander during operation, touched down in the Elysium Planitia region on Mars in November 2018. It maintained its mission for four years and, armed with the first seismometer to be taken to the Red Planet, it detected 1,319 marsquakes.