Triangulum Galaxy
GalaxyWikipedia
30
MENTIONS
15
EPISODES
3
PODCASTS
Search complete. 30 mentions across 15 episodes found for "Triangulum Galaxy".
Sep 11, 2026
What's in the September Sky? Giant Cosmic Bubbles a Blue Moon | Science Podcast for Kids
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It found five giant glowing pink and blue bubbles in a galaxy called NGC 604.
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Which is inside the M33 Triangulum Galaxy, right?
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You got it.
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And these aren't just regular bubbles.
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Unknown podcast
The True Scale of the Universe Will MELT Your Mind
Sep 5 · 1 Mention
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Most members are dwarf galaxies, faint, small collections of a few billion or even a few million stars each.
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The Triangulum Galaxy, also called Messier 33, is the third largest member, containing about 40 billion stars and sitting roughly 3 million light years from the Milky Way.
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Everything else in the Local Group is substantially smaller.
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The Large Magellanic Cloud holds perhaps 30 billion stars.
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Unknown podcast
The Distance Between Galaxies Is Worse Than You Think
Sep 4 · 4 Mentions
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Many of them orbit the Milky Way or Andromeda as satellites, trapped in gravitational bondage like moons circling a planet.
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The third largest member, the Triangulum Galaxy, contains roughly 40 billion stars and sits about 2.7 million light years from us.
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Beyond these three dominant spirals, the Local Group is mostly populated by dim, small, easily overlooked structures scattered across a volume of space, roughly 10 million light years in diameter.
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10 million light years.
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divided into islands of matter surrounded by expanding voids that no technology can bridge.
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The local group is our island.
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The Milky Way, Andromeda, Triangulum, and approximately 130 smaller galaxies comprise our gravitationally bound family.
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These galaxies are close enough and massive enough that their mutual gravitational attraction overcomes the cosmic expansion.
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Unknown podcast
What_s Really Above And Below The Sun_
Sep 4 · 1 Mention
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The Milky Way belongs to the Local Group, a collection of over 80 galaxies bound together by gravity within a volume roughly 10 million light years across.
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The Local Group is dominated by two large spiral galaxies, the Milky Way and Andromeda, with the smaller Triangulum Galaxy as a distant third.
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The remaining members are dwarf galaxies, scattered in three dimensions throughout the group's volume.
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The Local Group has no preferred alignment with the Milky Way's disk.
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Unknown podcast
The Distance Between Us and the Next Galaxy Is Far Worse Than You Think
Sep 3 · 5 Mentions
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Most of them are dwarf galaxies, tiny systems containing only millions or a few billion stars, gravitationally bound to either the Milky Way or Andromeda.
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The three major spirals, the Milky Way, Andromeda and the Triangulum Galaxy, dominate the group.
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The entire structure spans roughly 10 million light years.
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Within this volume, galaxies interact, orbit, and occasionally merge.
38 MINS LATER
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The merger was treated as virtually certain, but in June of 2025, a study led by Til Sawala at the University of Helsinki, published in the journal Nature Astronomy, significantly revised this picture.
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Sawala and his colleagues ran more than 100,000 simulations of the local group's future dynamics, using the latest data from both the Gaia spacecraft and the Hubble Space Telescope.
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The team incorporated the gravitational influence of surrounding galaxies that earlier studies had neglected, particularly the Large Magellanic Cloud and the Triangulum Galaxy, designated M33.
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The results were striking.
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Unknown podcast
The Terrifying Size of the Largest Galaxy We_ve Ever Found
Sep 3 · 1 Mention
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If IC 1101 were placed at the Milky Way's location, it would not merely dwarf our galaxy.
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It would engulf Andromeda, the Large Magellanic Cloud, the Small Magellanic Cloud, the Triangulum Galaxy, and nearly every other galaxy in the local group.
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a single galaxy occupying the space that our entire galactic neighbourhood currently fills.
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Try to feel this in a different way.
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Unknown podcast
Even If We Could Travel at Light Speed... It Still Wouldn_t Be Fast Enough
Sep 2 · 1 Mention
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They are our closest independent galactic companions, the nearest islands in the intergalactic sea, and reaching either one of them at the speed of light requires a journey longer than our species has been alive.
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The Triangulum Galaxy, the third largest member of our local group, lies roughly 2.7 million light years away, nearly as far as Andromeda, nearly as devastating to contemplate.
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Now face the real test.
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The Andromeda Galaxy, also known as M31, is the nearest large spiral galaxy to the Milky Way.
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Unknown podcast
How Much of the Universe Could Humans Ever Reach
Sep 2 · 1 Mention
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There is one further dimension of this problem worth naming, and it concerns the shrinking local group.
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Our own gravitational neighbourhood, the local group of galaxies containing the Milky Way, Andromeda, Triangulum and dozens of smaller companions, is the one region of space where cosmic expansion has effectively already lost.
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Gravity binds the Local Group together tightly enough that expansion cannot pull it apart, and the whole system behaves as a single gravitational island floating in an ocean of accelerating expansion.
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Far into the future, when everything outside the Local Group has receded beyond the observable horizon, the Local Group will remain a single, connected, gravitationally bound structure.
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Unknown podcast
Why the Universe is Far Bigger Than You Think
Sep 1 · 1 Mention
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The great superclusters Laniakea, the Shapley Concentration, the sprawling filaments of the cosmic web will dissolve from view over similar timescales.
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Within roughly 2 trillion years after the Big Bang, the only galaxies visible from our cosmic neighbourhood will be the few dozen members of the local group, the Milky Way, Andromeda, Triangulum.
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and the small dwarfs gravitationally bound to them.
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By that time, the Milky Way and Andromeda will have long since merged into a single elliptical galaxy, sometimes called Milkomeda.
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Unknown podcast
The Strange Reason Why Everything Spins in the Universe
Sep 1 · 1 Mention
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Andromeda rotates.
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The Triangulum Galaxy rotates.
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Distant spirals billions of light years away show the unmistakable signatures of rotation in their spectral lines.
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One side of the galaxy is blue-shifted, its light compressed as it moves toward us.
5 more episodes mention Triangulum Galaxy.
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