The discovery challenges everything we thought we knew about how giant crystals form — and raises urgent questions about what else lies hidden in Earth's deep aquifers.
In April 2000, somewhere under the Chihuahuan Desert, a drill bit punched through solid rock and hit nothing at all.
Miners cutting a new tunnel in search of fresh ore deposits, roughly 300 metres d… [+5560 chars]
Miners cutting a new tunnel in search of fresh ore deposits, roughly 300 metres d… [+5560 chars]