“Hell on Earth” might not just be an exaggeration. Scattered about the globe are various locations that scientists believe could be entrances to the underworld, ranging from a volcanic “hellhole” in ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More Madeleine L’Engle called them tesseracts. The Syfy channel calls them ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

Could there be real places on Earth that connect us to other dimensions or parallel realities? From ancient legends to modern unexplained phenomena, these 5 mysterious locations have left scientists ...

The Oak Ridge National Laboratory has been doing research into neutrons that could potentially confirm the existence of real-life portals. This has got the internet thinking about the 'Upside Down' in ...