The air above New Zealand's Mount Taranaki volcano glows orange and red on June 12 as a result of light-bending ash particles from the volcanic eruption in southern Chile. Many airlines grounded flights to and from southern Australia and New Zealand on June 13 after the ash cloud had expanded. The altered sunsets and sunrises following a volcanic eruption can persist for several months, Miller said. For example, "the 1783 eruption of Laki in Iceland lasted for several months, but people were reporting different colorations in the sunset and sunrises in Europe for many months after that," he said.
