The James Webb Space Telescope has unfolded its primary mirror, marking the end of the deployment phase for the observatory.
The New Year will see missions returning to the Moon and much more.
Venus presents a stunning crescent at dusk before switching over to the morning sky early next month. After dodging the Moon for the Geminids, it's dark skies all around for the Quadrantid meteor shower.
NASA will end support for the International Space Station by 2030, transitioning low-Earth orbit to commercial operations.
The Solar Orbiter mission will fly past Earth Friday night, setting up a dramatic sunward plunge.
A Russian missile struck a defunct satellite early Monday morning, forcing International Space Station crew to shelter in place.