Billionaire tech mogul Elon Musk drew attention to a circa 1960 converted underground limestone mine in Pennsylvania his team ...

A weather station in Peter Sinks, Utah, measured a daily low of 50.9 degrees below zero on Wednesday, potentially breaking ...

The limestone mine Elon Musk says handles federal retirement papers is actually a real thing that does in fact function ...

Japanese authorities have asked hundreds of residents near Tokyo to evacuate as a sinkhole at an intersection grew to more than 40 meters wide, hampering rescuers racing to reach an elderly truck ...

A tunnel boring machine on $26.1 billion road project has been forced to manoeuvre around a sinkhole that could halt work for ...

The federal government still processes retirement applications manually in a Pennsylvania limestone mine, a system Elon Musk ...

Elon Musk highlights a ‘limestone mine’ in Pennsylvania used for retirement paperwork processing at the Oval Office.

Reliable sinkhole data isn’t readily available to the public. For the fifth time, a Florida congressman is trying to pass a ...

Just about anywhere where you get limestone or dolomite close to the surface, you're going to have concerns with sinkholes. You're going to have concerns with a very fragile groundwater system ...