DEC 1, 2021
A Blue-Banded Blood Moon
DEC 2, 2021
NGC 6822: Barnard’s Galaxy
DEC 3, 2021
Comet Leonard and the Whale Galaxy
DEC 4, 2021
DEC 5, 2021
Total Solar Eclipse Below the Bottom of the World
DEC 6, 2021
Space Station Silhouette on the Moon
DEC 7, 2021
Ninety Gravitational Wave Spectrograms and Counting
DEC 8, 2021
Comet Hale-Bopp Over Val Parola Pass
DEC 9, 2021
DEC 10, 2021
Eclipse on a Polar Day
DEC 11, 2021
DEC 12, 2021
Comet Leonard Before Star Cluster M3
DEC 13, 2021
Meteors and Auroras over Iceland
DEC 14, 2021
HH 666: Carina Dust Pillar with Jet
DEC 15, 2021
Comet Leonard from Space
DEC 16, 2021
Geminids of the South
DEC 17, 2021
Geminid of the North
DEC 18, 2021
Stephan’s Quintet
DEC 19, 2021
DEC 20, 2021
DEC 21, 2021
Solstice Sun and Milky Way
DEC 22, 2021
Launch of the IXPE Observatory
DEC 23, 2021
Three Planets and a Comet
DEC 24, 2021
M1: The Crab Nebula
DEC 25, 2021
The Tail of a Christmas Comet
DEC 26, 2021
James Webb Space Telescope over Earth
DEC 27, 2021
Comet Leonard behind JWST Launch Plume
DEC 28, 2021
Sun Halo over Sweden
DEC 29, 2021
Giant Storms and High Clouds on Jupiter
DEC 30, 2021
The Further Tail of Comet Leonard
DEC 31, 2021
JWST on the Road to L2
