As the year winds down, we make one last stop beneath the night sky for the week of December 21–27, marking the arrival of the winter solstice, the longest night of the year and a quiet turning point in Earth’s journey around the Sun.

In this short holiday episode, we reflect on what the solstice means from an astronomical perspective, why ancient cultures saw it as a rebirth of light, and how it gifts modern stargazers with long, early nights and some of the most iconic sights in the sky.

We tour the familiar winter constellations as Orion rises into prominence, with the Orion Nebula, the Pleiades, Sirius, and the steady guideposts of the northern sky all on display. This week also features some of winter’s planetary beacons, with Jupiter blazing brightly, Saturn lingering quietly in the early evening, and Mercury making a brief predawn appearance for sharp-eyed observers.

The episode also includes a spoiler-free book recommendation for listeners who enjoyed November’s deeper dives into time dilation, interstellar travel, and the limits imposed by physics. Drew shares thoughts on Project Hail Mary by Andy Weir, author of The Martian.

Finally, as a holiday gift to listeners, we introduce Liminal Horizon, a new music project featuring three albums of space-inspired, planetarium-style music designed for stargazing, night drives, and quiet contemplation.

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