• Full Moon

    The Full Moon rises at sunset, and is visible all night. The Vatican Observatory's monthly Full Moon Meetup for Sacred Space Astronomy subscribers is held at 10:00 AM Tucson time.

  • World Science Day for Peace and Development.

    Celebrated every 10 November, World Science Day for Peace and Development highlights the significant role of science in society and the need to engage the wider public in debates on emerging scientific issues. It also underlines the importance and relevance of science in our daily lives. By linking science more closely with society, World Science […]

  • Last Quarter Moon

    The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.

  • New Moon 2025

    New Moon 2025

    New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely […]

  • Uranus at Opposition

    Uranus will be in opposition to the Sun on this date; this is when the Earth is positioned between the Sun and Uranus.