Lavas from hotspots - -whether erupting in Hawaii, Samoa or Iceland -- likely originate from a worldwide, uniform reservoir in Earth's mantle, according to an evaluation of volcanic hotspots.

A new study offers the most detailed glimpse yet into how Earth's surface temperature has changed over the past 485 million years. The data show that Earth has been and can be warmer than today -- but ...

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth’s ...

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit ...

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...

A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...