On May 5, the shadow of the Moon and the Earth "meet", and the penumbral lunar eclipse appears. 5.98% of the moon's diameter will enter the Earth's penumbra, and the entire process will last nearly four and a half hours.

The Aquariids meteor shower, named after the radiant near the bright star Aquarius, is a famous meteor shower that occurs between April 4 and May 19 every year. At the end of the month, Mercury Western Elongation Grand Finale debuts.