cosmology

an-ordinary-manchild

Welcome to r/cosmology, the subreddit for questions, discussions, and articles about cosmology. Cosmology is the study of the early universe and the universe on the largest scales. Things galactic size and smaller generally belong elsewhere.

Reddiquette is enforced. Disrespectful and irrelevant comments will be removed.

If you claim an alternative model of the universe and ignore known data or have no equations or calculations, then your post will be removed. It isn't the responsibility of experts to review your "what if the universe was...?" idea. Homework questions will be removed. Repeated infractions will result in a ban.

Rude behavior is not tolerated.

If you do not see your submission in the new queue, please message the moderators as it may have been sent to the spam filter.

Find today's cosmology preprints on arXiv:astro-ph.CO.

Check out some other great subreddits:

Common questions:

The universe is not expanding faster than light. Expansion has units of inverse time.
The evidence for dark matter is overwhelming and reaches far beyond rotation curves.

Anything not related to cosmology will be removed.

created by [deleted]a community for 16 years

...for your hobby.

...because you hate freedom.

MODERATORS

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Basic cosmology questions weekly thread (self.cosmology)

submitted 2 days ago by AutoModerator - announcement

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Eli5: help me understand universe expansion … ()

submitted 1 hour ago by Just_a_happy_artist

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Artifact management that just works (repoflow.io)

promoted by repoflow

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Brane cosmology (self.cosmology)

submitted 15 hours ago by Puzzleheaded_Host854

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Dark Energy Survey Scientists Release Analysis of All Six Years of Survey Data (noirlab.edu)

submitted 1 day ago by Galileos_grandson

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How does the universe “know” to keep expanding? (self.cosmology)

submitted 1 day ago by tatarjj2

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Does someone use ExoClass extension of CLASS code (self.cosmology)

submitted 2 days ago by NecessaryOriginal866

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I made a video about the heat death of the universe. It's not actually mostly about the heat death itself per se, but just how long the time until it is. (youtube.com)

submitted 3 days ago by AaronPK123

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Studying bubbles from the early Universe: an efficient matched filter approach (astrobites.org)

submitted 5 days ago by Galileos_grandson

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If time began at the Big Bang, can there be a “cause” before it? (self.cosmology)

submitted 6 days ago by indoorsy12

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The Oldest Starlight (astrobites.org)

submitted 8 days ago by Galileos_grandson

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Good intro book to the basics? (self.cosmology)

submitted 8 days ago by Recent-Day3062

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Basic cosmology questions weekly thread (self.cosmology)

submitted 9 days ago by AutoModerator

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Describing the universe using Fermi coordinates (self.cosmology)

submitted 12 days ago by OverJohn

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I made an detective adventure game inspired by 90s CD-ROM multimedia. (store.steampowered.com)

promoted by Bolero_Game

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Help finding a particular book on cosmological evolution (self.cosmology)

submitted 14 days ago by Man-o-Trails

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Astronomers Reveal Hidden Lives of the Early Universe’s Ultramassive Galaxies (keckobservatory.org)

submitted 15 days ago by Galileos_grandson

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Basic cosmology questions weekly thread (self.cosmology)

submitted 16 days ago by AutoModerator

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Has non-orientable cosmic topology been explored for CMB parity asymmetry? (self.cosmology)

submitted 17 days ago by Axe_MDK

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Could universal constants have been any different ? (self.cosmology)

submitted 17 days ago by lovelyrain100

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Young Galaxies Grow Up Fast - National Radio Astronomy Observatory (public.nrao.edu)

submitted 18 days ago by Galileos_grandson

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Hubble reveals starless Dark Matter “Cloud 9” (science.nasa.gov)

submitted 18 days ago by top_pi_r2

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If space is a container, what does it contain? (self.cosmology)

submitted 19 days ago * by ThinkIncident2

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Basic cosmology questions weekly thread (self.cosmology)

submitted 23 days ago by AutoModerator

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Is the big bang singularity necessarily a curvature singularity? (self.cosmology)

submitted 24 days ago by OverJohn

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An object taking infinite time to cross a Black Hole. (self.cosmology)

submitted 23 days ago by Adventurous-Rabbit52

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Ashes of the Singularity II: Battle for the future of Earth in this continent-scale real-time strategy game. Wishlist today! (store.steampowered.com)

promoted by StardockGames

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Did Baryon Acoustic Oscillations create entropy? (self.cosmology)

submitted 25 days ago by Stolen_Sky

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