When a volcano erupts, pyroclastic flows are often the biggest danger to anyone nearby. These fast-flowing currents of rock, ash and hot gas are extremely difficult to study, so researchers created their own. Read the related Nature Geoscience paper here: https://go.nature.com/2Im1bYs | Nature Portfolio

Time-lapse footage shows the Philippines' most active volcano erupting on Monday http://cnn.it/2EK9ic5 | CNN

2.5M views · 58K reactions | Dramatic video shows bolts of lightning as a volcano spews ash up to nine miles into the air in the Philippines. The country has raised the alert level, meaning an "explosive eruption" could happen in the coming hours or days: cnn.it/35OKfBK | CNN | Facebook