As of Monday, Aug. 18, the moon phase is Waning Crescent, and it is 25% lit up to us on Earth, according to NASA's Daily Moon Observation.

On Aug. 18, 1920, the 19th Amendment to the U.S. Constitution, guaranteeing women the right to vote, was ratified by Tennessee.

All week, starting on August 18, 2025, five zodiac signs have the best horoscopes. Jupiter and the Moon meet up early in the week, bringing back some of the beautiful story from the Venus and Jupiter conjunction last week. Water and Earth signs will be especially appreciative of the wonderful dynamic that awaits them at this time.

One of the last few Titan shadow transits of the year takes place overnight tonight, with several of Saturn’s other moons visible as well.

Look up in the night sky Sunday through Tuesday, August 18–20 to enjoy a rare blue supermoon this week. Reaching peak fullness at 2:26 p.m. ET on Monday, August 19, it’s the first full ...

In the summer of 2024, the full moons occur on June 21, July 21, Aug. 19 and Sept. 18. Therefore, the full moon in August, being the third in this sequence, is referred to as a blue moon.