Scientists Discovered a Large Lava Tube Hiding Beneath the Floor of Venus

Scientists could have discovered the primary proof of underground tunnels lurking beneath the floor of Venus, carved by the planet’s historic volcanic exercise.

A workforce of researchers from the College of Trento noticed what seems to be an underground lava tube on Venus, the primary subsurface characteristic ever detected on the volcanic world. The findings, detailed in a study printed in Nature this month, might verify long-held theories about Venus’ volcanism and the way it formed the planet.

“Our information of Venus continues to be restricted, and till now we now have by no means had the chance to immediately observe processes occurring beneath the floor of Earth’s twin planet,” Lorenzo Bruzzone, a professor on the College of Trento and co-author of the examine, stated in a statement. “The identification of a volcanic cavity is subsequently of specific significance, because it permits us to validate theories that for a few years have solely hypothesized their existence.”

Secret cave

The scientists behind the examine scoured by radio knowledge collected by the Megallen mission between 1990 and 1992. The spacecraft pierced by Venus’ thick clouds to map its floor utilizing artificial aperture radar.

The workforce analyzed the radar photos to seek for indicators of localized floor collapse, and located what they consider to be an empty, subsurface lava tube close to the planet’s Nux Mons volcano. The lava tube is round 0.6 miles huge (1 kilometer), which is bigger than ones discovered on Earth and Mars. Its roof has a thickness of round 490 ft (150 meters) and it boasts an empty cavity that’s at the very least 1 / 4 of a mile (375 meters) excessive. 

Lava tubes are underground tunnels which can be created by volcanic exercise. They often kind as a by-product of basaltic lava flows, the place low viscosity lava continues to circulate beneath a floor of solidifying lava.

Venus is the most volcanically active planet in the solar system, and the planet’s excessive volcanism has formed its floor. Scientists have lengthy theorized that Venus’ volcanic historical past could have additionally resulted in a big underground community of lava tubes, however that has to this point been arduous to detect because of the planet’s dense environment.

Underground tunnels

The detection of the primary lava tube on Venus suggests there could also be extra lurking beneath the planet’s floor. “This discovery contributes to a deeper understanding of the processes which have formed Venus’s evolution and opens new views for the examine of the planet,” Bruzzone stated.

The researchers behind the examine counsel that new high-resolution photos and knowledge acquired by radar techniques that penetrate the floor are wanted to find out whether or not there are extra lava tubes on Venus.

Upcoming missions equivalent to NASA’s VERITAS and the European Area Company’s EnVision, each set to launch in 2031, may have what it takes to see beneath the floor of Venus looking for historic tunnels carved by the planet’s volcanic historical past.