Venus and Earth are sometimes called twins because they’re pretty much about the same size. They also formed in the same ...

For most organisms on Earth, rocks are objects, not food. But for one oddball microbe, desert limestone seems to have been on ...

Researchers confirm with radar and laser the existence of hidden passages beneath Milan's Sforza Castle, anticipated by Leonardo's sketches.

Massive lava-carved tunnels have been confirmed beneath the surface of Venus, providing the strongest evidence yet that the ...

It has been suggested that lava tubes - underground tunnels carved out by molten rock - might be on Venus, and now we have ...

Over 200 underwater bridge tunnels exist for vehicular traffic around the world, providing connectivity between cities. Once ...

The road from Stavanger to Rennesøy already has two underwater tunnels, Byfjordtunnelen and Mastrafjordtunnelen, which were built as a part of the Rennfast project in the 1990s, but these are starting ...