These Mysterious Blazing-Fast Ripples Racing Around a Star Defy Explanation

Scientists were looking for planets forming in the large disk of dust surrounding a young star when they encountered a surprise: fast-moving, wavelike arches racing across the disk like ripples in water. The team first spotted the five structures in data from the European Southern Observatory's Very Large Telescope in Chile while searching for lumps and bumps that might indicate planets forming around the young star. When the researchers looked back at images taken with the Hubble Space Telescop