Year 2021, Month 10
- 01: The Central Milky Way from Lagoon to Pipe
- 02: A Light and Dusty Night
- 03: The Holographic Principle and a Teapot
- 04: NGC 4676: When Mice Collide
- 05: Sunrise at the South Pole
- 06: M43: Streams of Orion
- 07: NGC 6559: East of the Lagoon
- 08: The Double Cluster in Perseus
- 09: 50 Light-years to 51 Pegasi
- 10: Full Moon Silhouettes
- 11: Juno Flyby of Ganymede and Jupiter
- 12: Fireball over Lake Louise
- 13: NGC 7822: Cosmic Question Mark
- 14: NGC 7293: The Helix Nebula
- 15: NGC 289: Swirl in the Southern Sky
- 16: The Moona Lisa
- 17: The Einstein Cross Gravitational Lens
- 18: Earthshine Moon over Sicily
- 19: Palomar 6: Globular Star Cluster
- 20: Lucy Launches to Eight Asteroids
- 21: SH2-308: The Dolphin-head Nebula
- 22: A Comet and a Crab
- 23: 3D Bennu
- 24: Halloween and the Ghost Head Nebula
- 25: Road to the Galactic Center
- 26: Jupiter Rotates
- 27: NGC 6995: The Bat Nebula
- 28: Mirach's Ghost
- 29: Haunting the Cepheus Flare
- 30: A Rorschach Aurora
- 31: Dark Matter in a Simulated Universe