One recent morning near the mouth of a canyon in southwest Colorado Springs, Christine Siddoway placed a few peculiar rocks ...

The continents we live on today are moving, and over hundreds of millions of years they get pulled apart and smashed together again. Occasionally, this tectonic plate-fueled process brings most of the ...

The ancient supercontinent Rodinia may be responsible. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A mystery lies deep within the Grand ...