# The Hidden Universe: Cosmic Structures in the Dark

Page: https://stenobird.com/podcast/star-trails-a-weekly-astronomy-podcast-6777620/the-hidden-universe-cosmic-structures-in-the-dark
Text version: https://stenobird.com/podcast/star-trails-a-weekly-astronomy-podcast-6777620/the-hidden-universe-cosmic-structures-in-the-dark.md
Podcast: [Star Trails: A Weekly Astronomy Podcast](https://stenobird.com/podcast/star-trails-a-weekly-astronomy-podcast-6777620)
Published: 2026-05-17T04:00:00+00:00
Episode link: https://rss.com/podcasts/star-trails/2831838
Audio file: https://content.rss.com/episodes/250148/2831838/star-trails/2026_05_16_21_10_07_095bcb64-2368-44b0-bebe-34762adc45d3.mp3
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JSON: https://stenobird.com/v1/public/podcasts/star-trails-a-weekly-astronomy-podcast-6777620/episodes/the-hidden-universe-cosmic-structures-in-the-dark
Duration seconds: 1311

## Resource

This week we continue our month-long journey through the world of galaxies, but this time, we venture into one of astronomy’s darkest frontiers. Beyond the glowing spirals and brilliant star clouds lies a universe filled with hidden structures, invisible matter, and mysteries that continue to challenge modern science. We venture into the Zone of Avoidance, a cosmic blind spot created by the dust and stars of our own Milky Way, and ask whether entire galaxies may still be hiding just beyond our view. From ghostly ultra-diffuse galaxies like Dragonfly 44, to the invisible gravitational scaffolding of dark matter, we’ll follow the clues that reveal a universe far stranger than it first appears. Along the way, we’ll look at the mind-bending beauty of gravitational lensing, the mysterious pull of the Great Attractor, and the breathtaking scale of the cosmic web, an immense network of filaments, nodes, and voids that connects galaxies across billions of light-years. Later in the show, we step back outside for your weekly night sky report, featuring dark skies after the new moon, evening views of Venus and Jupiter, pre-dawn glimpses of Saturn and Mars, early Milky Way core season, and a few lesser-known galaxy targets hiding in Canes Venatici. Connect with us on Bluesky @ startrails.bsky.social If you're enjoying the show, consider sharing it with a friend! Want to help? Buy us a coffee ! Also, check out music made for Star Trails on our Bandcamp page! Podcasting is better with RSS.com ! If you're planning to start your own podcast, use our RSS.com affiliate link for a discount, and to help support Star Trails.

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## Transcript

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