Blast Furnace By Alexandre Hec, France

When the lava flow from Kilauea on Hawaii’s Big Island periodically enters the ocean, the sight is spectacular, but on this occasion Alexandre was in for a special treat. Kilauea (meaning ‘spewing’ or ‘much spreading’) is one of the world’s most active volcanoes, in constant eruption since 1983. As red-hot lava at more than 1,000˚C (1,832˚F) flows into the sea, vast plumes of steam hiss up, condensing to produce salty, acidic mist or rain.