Yellowstone officials say at least three tourists have been cited this summer for illegally flying drones in the park.
Mount Tavurvur erupted to 60,000 feet Friday, forcing planes to re-route from Australia and evacuations of local communities.
An eruption near Iceland's Bardarbunga volcano that briefly threatened air travel has ended, local officials say.
LOS ANGELES (Reuters) - A solution to the longstanding mystery of why rocks move erratically across an isolated patch of California's Death Valley finally emerged on Thursday, when researchers published a study showing the driving force was sheets of wind-driven ice.
By Irene Klotz CAPE CANAVERAL Fla. (Reuters) - NASA’s new heavy-lift rocket, designed to fly astronauts to the moon, asteroids and eventually Mars, likely will not have its debut test flight until November 2018, nearly a year later than previous estimates, agency officials said on Wednesday. NASA is 70 percent confident of making a November 2018 launch date, given the technical, financial and ma