Research on the Tolbachik eruption (Image 7)

Russian scientists observe the top of lava that is moving through the snow, which is about 6 feet (2 meters) deep. In the foreground, a researcher hurriedly digs a pit in the snow to observe how the lava is moving through the snowpack.

Ben Edwards, a professor of Earth sciences at Dickinson ...This is an NSF Multimedia Gallery item.

Source: NSF Multimedia Gallery - May 30, 2019 Category: Science Source Type: video