Competition Resources

• Chinese National Astronomy Olympiad – Registration Portal
• Astro-init – Astronomy Olympiad Problems Collection Website

Citizen Science

• PSP – Public Supernova Project
• Gravitational Lens Finder Project
• IASC – International Astronomical Search Collaboration
• COIAS – Come On! Impacting ASteroids
• Zooniverse – Citizen Science Platform

Astronomy Websites

• NADC – National Astronomical Data Center
• NASA – National Aeronautics and Space Administration
• The Astronomer's Telegram
• Minor Planet Center (MPC)
• AAVSO – American Association of Variable Star Observers