By Will Dunham WASHINGTON, Feb 9 (Reuters) - A fresh examination of radar data for Venus obtained by NASA's Magellan spacecraft in the 1990s indicates the presence of a large underground cavity ...

Researchers had only hypothesized the existence of underground lava tubes on Venus —until now.

While most people are familiar with “the floor being lava” as a concept—even as a Netflix show—it’s rare for there to be a literal lava floor. But that is indeed the case when geologists collect hot ...