Year 2021, Month 01
- 01: Galaxies and the South Celestial Pole
- 02: 21st Century Wet Collodion Moon
- 03: A Phoenix Aurora over Iceland
- 04: Sprite Lightning at 100,000 Frames Per Second
- 05: The Small Cloud of Magellan
- 06: Striped Sand Dunes on Mars
- 07: Total Solar Eclipse 2020
- 08: NGC 1365: Majestic Island Universe
- 09: Titan: Moon over Saturn
- 10: Star Cluster R136 Breaks Out
- 11: Moon Phases in 2021
- 12: A Historic Brazilian Constellation
- 13: Arches Across an Arctic Sky
- 14: Aurora Slathers Up the Sky
- 15: A Plutonian Landscape
- 16: The Mountains of NGC 2174
- 17: Jets from Unusual Galaxy Centaurus A
- 18: The Medulla Nebula Supernova Remnant
- 19: A Lunar Corona with Jupiter and Saturn
- 20: The Magnetic Field of the Whirlpool Galaxy
- 21: M78 Wide Field
- 22: The Milky Ring
- 23: Recycling Cassiopeia A
- 24: Massive Nearby Spiral Galaxy NGC 2841
- 25: Southern Cross over Chilean Volcano
- 26: Central NGC 1316: After Galaxies Collide
- 27: The Vertical Magnetic Field of NGC 5775
- 28: Messier 66 Close Up
- 29: North American Nightscape
- 30: Southern Sky from 38,000 Feet
- 31: Asteroids in the Distance