Nasa New Moon Calendar 2025 Calendar. Prepared by griffith observatory using usno mica software and nasa/jpl horizons web portal. Above you can see our calendar of moon phases for january 2025.

Dates of the new and full moons in 2025. The moon can be seen in the daylit sky at any phase except for the new moon, when it’s invisible to us, and full moon, when it’s below the horizon during the day.