Andromeda Is Coming: The Fate of the Milky Way
Jan 17, 2026
Right now, the Andromeda Galaxy is racing toward the Milky Way at 110 km/s. For decades, we predicted a galactic collision, but new data reveals a more complex future for the universe.
In this ~28 minute contemplative space documentary, we follow the long approach — and the possible encounter — between our galaxy and its massive neighbor:
• 964 AD: Al-Sufi’s “small cloud,” and the centuries-long debate over what it was.
• 1913: Vesto Slipher’s blueshift clue — Andromeda is moving toward us.
• Cepheids and the distance ladder: how Andromeda was proved to be far beyond the Milky Way.
• Scale: ~1 trillion stars; if your eyes could see its faint outer light, it would span ~six full Moons across the sky.
• What “galactic collision” really means: stars rarely hit — gravity reshapes orbits, shreds spiral arms, and compresses gas into starbursts.
• Multiple passes over billions of years — ending in a merged remnant (“Milkdromeda”) and a binary supermassive black hole.
• Newer Hubble + Gaia modelling suggests the outcome may be less inevitable than once thought: collision, near-miss, or a long gravitational dance.
— Atta, The Quiet Observatory
Sources & further reading:
M31 overview (distance, visibility, “six Moons”): https://science.nasa.gov/mission/hubb...
Hubble Andromeda mosaic / ~1 trillion stars: https://science.nasa.gov/missions/hub...
Edwin Hubble + Cepheids (NASA): https://science.nasa.gov/people/edwin...
Slipher 1913 (Andromeda radial velocity PDF): https://www2.lowell.edu/workshops/sli...
Hubble 2012 collision forecast: https://science.nasa.gov/missions/hub...
van der Marel et al. 2012 (ApJ): https://ui.adsabs.harvard.edu/abs/201...
2025 update (Hubble + Gaia; uncertainty): https://www.stsci.edu/contents/news-r...
ESA summary (Hubble + Gaia revisit): https://www.esa.int/Science_Explorati...
Sawala et al. 2025 (Nature Astronomy; ADS): https://ui.adsabs.harvard.edu/abs/202...
Music (licensed via Artlist): Kyle Preston; Fable Forte: Lars Bork Andersen
Explore the impending collision of the Andromeda and Milky Way galaxies. The Quiet Observatory details this celestial event, covering its history and potential impact on our solar system billions of years from now. Discover the observable evidence and future consequences of this galactic dance.
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