Yellowstone has never erupted within recorded human history. But a new discovery has highlighted just how active this ...

How do volcanologists determine the height of eruptive plumes from Yellowstone’s past explosive eruptions? Ironically, you ...

According to the Yellowstone Volcano Observatory, it’s probable that this new hydrothermal feature is connected to activity ...

A park scientist noticed it about two weeks after a hydrothermal explosion along a boardwalk during the park’s overactive summer.

But the stand of trees is hiding a rhyolite lava flow, a thick type of lava that tends to form short, chunky flows throughout the Yellowstone Caldera. The new thermal feature stems from the base ...