Mauna Loa, the world's largest active volcano, is the mighty giant of Hawaii that's still bubbling away, waiting to be explored.

It's not every day you have a massive Oregon volcano ready to blow, and experts are looking forward to seeing it erupt in all ...

Passing by a series of subterranean geological features named cave chocolate, cave bacon and cave popcorn, I start to wonder ...

A key site that monitors global carbon-dioxide emissions went offline for maintenance and will return later Wednesday, according to the National Oceanic and Atmospheric Administration.Most Read from B ...

With its beautiful beaches, rainforests, volcanic mountains, and lava deserts, the island of Hawaii is the perfect road trip ...

We’ve compiled a list of what we believe to be the top-10 UNESCO heritage sites up and down the 50 states, let’s see if you agree. Yosemite National Park is a true wonder of the world. Towering ...