A rare blue supermoon rising August 30 will be the biggest full moon of 2023 — and won't happen again until 2037

• A blue supermoon will rise on Wednesday, August 30.
• It won't actually look blue, but it will be the brightest moon this year.
• A somewhat rare occurrence, the next blue supermoon won't appear until 2037.

On Wednesday, a full, luminous moon will appear in the sky. While experts debate the exact definition of a supermoon, this last full moon of the summer meets all the criteria.