AL Observing Program Announcement – July 2025 Hubble Telescope 35th Anniversary Challenge is up…
Sorry it is late. The July Observing Challenge is available: https://www.astroleague.org/nasa-observing-challenges-special-awards/
Sorry it is late. The July Observing Challenge is available: https://www.astroleague.org/nasa-observing-challenges-special-awards/