Researchers from Purdue University, Indiana, have discovered a giant 124 mile-wide crater on the Moon. The discovered crater, dubbed Earhart, remained undetected for several years of lunar observations. The crater was spotted during an analysis of data from NASA's Gravity Recovery and Interior Laboratory (GRAIL).
The buried crater was discovered while scientists were searching GRAIL data for evidence of underground structures known as lava tubes. They came across Earhart, which is estimated to be at least 3.9 billion years old.