One recent morning near the mouth of a canyon in southwest Colorado Springs, Christine Siddoway placed a few peculiar rocks in a parking lot and a dozen strangers gathered around. “That’s pretty,” one ...

About 3 million people visit Red Rock Canyon outside of Las Vegas every year, but few have noticed the tiny yellow sunflower that has called it home for centuries. It may face extinction without ...

The US trade war with China has a major sticking point: rare earth minerals. China increased its restrictions on its rare earth exports Thursday, leading US President Donald Trump to threaten economic ...

Meteorite found in Finland reveals unprecedented phosphorus levels, one of the rarest in the solar system today ...