Using data from the TESS space telescope, astronomers have discovered over 10,000 new exoplanet candidates. That's an unprecedented number for a single survey.
On May 6, 1968, more than a year before he walked on the moon, Neil Armstrong narrowly escaped disaster during training. See Neil Armstrong's close call here.
Alan Shepard became the 1st American in space on May 5, 1961. His suborbital flight took place just 3 weeks after the Soviet Union's Yuri Gagarin orbited Earth.