Broken stalagmites in a French cave show that humans journeyed more than a mile into the cavern some 8,000 years ago. The finding raises new questions about how they did it, so far from daylight.
Quantum challenge to be solved one mile underground - EurekAlert
The Invisible World Half a Mile Under: Scientists Unveil Hidden Activity of Life Below Ground
What Made Denver, the Mile High City, a Mile High? Geologists Uncover Hidden History
Scientists want to build 62-mile-long curtains around the 'doomsday glacier' for a $50 billion Hail Mary to save it
Life on Mars could have thrived near active volcanoes and an ancient mile-deep lake
Massive Exoplanet Spotted With a 350,000-Mile Long, Comet-Like Tail
This Exoplanet Has Been Hiding a Big Secret: A 350,000-Mile-Long Tail
This Distant Planet Has a 350,000-Mile-Long Cometlike Tail
This Distant Planet Has a 350,000-Mile-Long Comet-Like Tail