Tag Archives: Volcanoes

A piercing alarm burst from millions of cellphones, a signal to hundreds of thousands of people to pack their bags and flee one of Europe’s most dangerous volcanoes. But most of the Italians who heard it shrugged. It was around 5 o’clock on a Friday afternoon, and the alert wasn’t …

Astronomers have identified thousands of planets orbiting distant stars using sophisticated observatories. But there’s something they have yet to spot with any certainty: moons around those worlds. Now a recent discovery around a Saturn-size planet 635 light-years from Earth offers one of the best potential clues that exomoons orbit exoplanets …