DECEMBER

Starburst Galaxy M94 from Hubble

Mercury Crosses a Quiet Sun

M27: The Dumbbell Nebula

Electric Night

Spiral Galaxy NGC 6744

Pleiades to Hyades

Lines of Time

Geminid Meteors over Chile

Looking Sideways from the Parker Solar Probe

Starlink Satellite Trails over Brazil

N63A: Supernova Remnant in Visible and X-ray

Decorating the Sky

Full Moon Geminids

Interstellar Comet 2I/Borisov

Mammatus Clouds over Nebraska

The Magnetic Fields of Spiral Galaxy M77

The Horsehead Nebula

A Hotspot Map of Neutron Star J0030's Surface

Apollo 17's Moonship

Late Afternoon on Mars

Solstice to Solstice Solargraph Timelapse

Solstice Illuminated: A Year of Sky

Places for OSIRIS-REx to Touch Asteroid Bennu

A Northern Winter Sky Panorama

An Annular Solar Eclipse over New Mexico

The Northern Winter Hexagon

A Partial Solar Eclipse Sequence Reflected

A Distorted Sunrise Eclipse

Cassini Spacecraft Crosses Saturn's Ring Plane

Messier 20 and 21

M33: The Triangulum Galaxy