Explaining on Instagram: "When a volcano erupts, geologists head straight toward the glowing rivers of lava — wearing heat-resistant suits and face shields to protect against extreme temperatures! They use long metal rods or rock hammers to chip away at the molten surface, scooping out a small piece of still-flowing lava. The goal is to grab a sample while it’s fresh — before it cools and changes! Once collected, the lava is dropped into a bucket of cold water, instantly freezing it into solid r