The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent home counties of Buckinghamshire, Essex and Hertfordshire in England.The Underground has its origins in the Metropolitan Railway, the world's first underground passenger railway.

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‘Mind-boggling’ palm that flowers and fruits underground thrills scientists

Cosmic-ray 'GPS' system that tracks underground movement could change the way we respond to disasters

Scientists conduct first test of a wireless cosmic ray navigation system. System could be used to guide underwater or underground robots.

Cosmic Subatomic Particles Might Finally Give Us a Way to Navigate Underground

Navigating underground with cosmic-ray muons

Cosmic rays help navigate underground in first real-world test

Underground fungi absorb up to a third of our fossil fuel emissions

Study finds Neanderthals manufactured synthetic material with underground distillation

Researchers Are Building a Simulated Moon/Mars Research Station Deep Underground

A deep underground lab could hold key to habitability on Mars

A deep underground lab could hold key to habitability on Mars

Exploring the underground connections between trees

How a campaign to keep fossil fuels underground is gaining traction

‘Cryptic’ creatures lurking in underground wells discovered to be new species in India

New 'Silo' trailer dives deep underground into Apple TV+'s upcoming sci-fi series

Underground water could be the solution to green heating and cooling

'Silo' explores post-apocalyptic life underground in new Apple TV+ series (trailer)

University of Arizona engineers have developed a system that allows autonomous vehicles to scout out underground habitats for astronauts - robotic exploration of caves on Mars and beyond

Parched California Misses a Chance to Store More Rain Underground

Wood-Wide Web: Do Forest Trees Really “Talk” Through Underground Fungi?