A vast underground tunnel known as a lava tube, formed from ancient volcanic activity, has been discovered Venus.

Scientists have used radar technology to shed new light on the subsurface of the moon. Researchers used the Miniature Radio Frequency (Mini-RF) instrument on NASA's Lunar Reconnaissance Orbiter (LRO) ...

NASA's Perseverance landed on Mars in February 2021 and has been gathering data on the planet's geology and climate and searching for signs of ancient life. The rover's subsurface radar experiment has ...

With Europe’s Mars Advanced Radar for Subsurface and Ionospheric Sounding (Marsis) declared a success, planetary scientists around the world are eagerly anticipating other targets for the technology.

NASA’s Mars Reconnaissance Orbiter has extended the long-armed antenna of its radar, preparing the instrument to begin probing for underground layers of Mars. The orbiter’s Shallow Subsurface Radar, ...

The European Space Agency’s (ESA) Mars Express has returned strong evidence for an ocean once covering part of Mars. Using radar, it has detected sediments reminiscent of an ocean floor within the ...

ESA’s Mars Express radar sounder, MARSIS, has looked beneath the martian surface and opened up the third dimension for planetary exploration. The technique’s success is prompting scientists to think ...