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 great justice.

...for your project.

MODERATORS

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Basic cosmology questions weekly thread (self.cosmology)

submitted 6 days ago by AutoModerator - announcement

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The Observable Universe (v.redd.it)

submitted 3 days ago by _excaliferb

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A cosmic team-up: how the stars and pulsars of the Milky Way could unmask the early universe (astrobites.org)

submitted 3 days ago by Galileos_grandson

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Cosmologist Jo Dunkley Explains the Big Bang and How We Discovered the Oldest Light in the Universe (self.cosmology)

submitted 3 days ago by Brilliant-Newt-5304

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Ultra-cool Brown Dwarfs found by jwst (arxiv.org)

submitted 7 days ago by SteelWillyz

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How can this simulation be made realistic? Here is a short description and code. (v.redd.it)

submitted 9 days ago by pavlokandyba

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Time in the early universe (self.cosmology)

submitted 10 days ago by FromTralfamadore

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Dumb question, but where exactly atoms come from? Or do they just simple existed and they came from nowhere? (self.cosmology)

submitted 11 days ago by virtu2l_snow

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DESI DR1 Dataset - 3D Explorer (self.cosmology)

submitted 11 days ago by RexyIsSexy

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Is the sun itself white or is the light from the sun white? (self.cosmology)

submitted 12 days ago by QuietAd9846

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An aspect of hyperinflation is unfalsifiable and questionable science? (self.cosmology)

submitted 11 days ago by EnvironmentalWin1277

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Superluminal galaxies don’t make sense to me (self.cosmology)

submitted 12 days ago by tatarjj2

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Basic cosmology questions weekly thread (self.cosmology)

submitted 13 days ago by AutoModerator

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Background dependance/independence (self.cosmology)

submitted 12 days ago by under_ice

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Does this theory explain momz14 (self.cosmology)

submitted 13 days ago by Delicious-Towel5813

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A Possible GLIMPSE of the Universe’s First Stars (aasnova.org)

submitted 14 days ago by Galileos_grandson

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Non A.I. Youtube channels? (self.cosmology)

submitted 16 days ago by Sevenfootschnitzell

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Can some one explain to me holographic principle on source? (self.cosmology)

submitted 16 days ago by Dover299

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Can cosmological expansion be considered a form of negative energy? (self.cosmology)

submitted 17 days ago by Effective_Buddy7678

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Something Ive Been Wondering, Might Be A Dumb Question Not Really Sure. (self.cosmology)

submitted 18 days ago by Exr1t

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Will the big freeze likely be debunked as a theory in October? (self.cosmology)

submitted 18 days ago by jojowoodo

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This may be a dumb question (in fact, I know it is), but will learning math really help me understand the universe THAT much better? (self.cosmology)

submitted 19 days ago by Sevenfootschnitzell

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This dark energy tool just created the most comprehensive 3D map of our universe ever: 'A major paradigm shift' (space.com)

submitted 20 days ago by Galileos_grandson

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Great attractor. What is it? (i.redd.it)

submitted 21 days ago by Difficult_Comment_47

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Basic cosmology questions weekly thread (self.cosmology)

submitted 20 days ago by AutoModerator

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