You might have heard of the ongoing volcanic eruptions near Grindavík, Iceland. You might not have heard that it's hard to monitor a volcano in the dark. We'll talk about why an Icelandic winter is the worst time for monitoring equipment...

Hank reviews the latest in science news, including the discovery of Element 115, the biggest volcano on Earth, and new insights into what it might mean to have small testicles.

Hank squares off against Crash Course Astronomy host Phil Plait in our special Valentine’s/Old Timey Medicine edition of SciShow Quiz Show!

Hawaii's Kilauea volcano suddenly erupted last week. It's happened before, so why are eruptions so hard for scientists to predict?

Hank reviews the latest in science news, including the discovery of Element 115, the biggest volcano on Earth, and new insights into what it might mean to have small testicles.

The eruption of Krakatoa in 1883 was one of the most powerful and loudest explosions in history, reaching 310 decibels and being heard over 3,000 miles away. The blast triggered massive tsunamis, destroying nearby areas and taking 36,000...

The Tonga eruption in January 2022 was the most powerful volcanic explosion of the 21st century so far, sending ash 36 miles into the sky and creating tsunamis up to 65 feet high. The eruption was so strong that it caused a sonic boom...

The eruption of Mount Pinatubo in the Philippines on June 15, 1991, was the second largest of the 20th century, sending ash 28 miles into the sky and spreading debris for hundreds of miles. Thanks to early warnings from scientists, over...

Dr. Forrester explains the job of a geologist.

Alexa Van Eaton is a research geologist with the United States Geological Survey's Cascades Volcano Observatory. She uses techniques to directly observe volcanic eruptions and study the layers they leave behind, providing important clues...

NASA Geologist Brent Garry discusses his work studying volcanoes and lava flows on the Earth, the Moon, and Mars.<b<b<b<br/>r/>r/>r/>