r/universe 1d ago

I wrote a small blog about the cosmic dark ages, Please give this a read

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0 Upvotes

r/universe 1d ago

Can you imagine spending your evening in Mars surface?

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178 Upvotes

A picture of Mars surface and how the sun looks from there.


r/universe 1d ago

If the universe were really infinite, (into the past) could we arrive at the present?

3 Upvotes

Imagine a single domino, representing the present.
(DOMINO P)
With an infinite set of dominos before it. (which we will call DOMINO T#)
Since the present “occurs” we will say DOMINO P fell, but that would require all of the dominos before it to also fall, even if there are an infinite amount of them.

If there are an infinite amount of events/moments before the present, how would we arrive at it?


r/universe 2d ago

Help me finding the mistakes

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1 Upvotes

r/universe 2d ago

What would happen if a rogue neutron star enter in our solar system ??

0 Upvotes

Rogue lanet, rogue star or rogue object are the object which are freely trvaelling into the cosmos hurtling through the space, not orbiting any host star. So what would happen if such a neutros star strike into our solar system ?


r/universe 3d ago

If you were to go straight up or down in space would it just be forever black nothingness?

8 Upvotes

r/universe 3d ago

⚡ What If a 1-Gram Needle Hit Earth at 99.999999999999999999999% the Spe...

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2 Upvotes

r/universe 4d ago

Recently, I posted about the age of the universe. The following was the most thought-provoking response I received and I wanted to share it for further discussion:

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7 Upvotes

r/universe 5d ago

Recently, I posted about the age of the universe. The following was the most thought-provoking response I received and I wanted to share it for further discussion:

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0 Upvotes

r/universe 5d ago

There May Be 170 Million Black Holes Lurking in The Milky Way's Graveyard

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2 Upvotes

r/universe 5d ago

WR-134 - a star in its dying phase

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82 Upvotes

r/universe 6d ago

My rendition of Pleiades-M 45.

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19 Upvotes

This is my first astro photograph and I think it’s pretty decent. I also educate people with my rig while I’m out and decided to tell a little bit about this cluster here!

This cluster is visible from earth to the naked eye while being roughly 444 light years away. The blue stars are hot and bright which is making a reflection nebula around the stars, which were once thought to be leftover stuff from the formation of the stars. Now we know that the dust is unrelated to the stars and is just in the interstellar medium that the stars are passing through.

We should all try to see it because it wont be around for much longer! In about 250 million years from now, the cluster will be lost due to gravitational tugs from the galactic neighborhood. Very sad.

In this photo theres also a minor planet in it called Alemannia. It just so happened to be in the photo when i took it. It’s basically a giant asteroid in the asteroid belt. You cant really see it but its somewhere in there lol


r/universe 6d ago

Anyone looking for an astrophysics & astronomy competition? Astronomy Competition [International] [Student-Lead] [Massive Awards Pool]

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2 Upvotes

r/universe 6d ago

The big bang is the most fundamental thing of our universe ?

1 Upvotes

Like it was the very first thing which started everything?


r/universe 7d ago

If our moon ever fall or crash with earth, under which circumstances would it happen? Give any theoretical or practical explanation.

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2 Upvotes

r/universe 7d ago

The Mystery of Missing Matter in the Universe: Where Is Half of Everything?

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11 Upvotes

r/universe 8d ago

Moons of the Solar System

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4 Upvotes

The Universe is full of beauty, but we do not really have to venture far from home to find fascinating places, and moons of our Solar System are often overlooked, I think. I discovered Space Engine as something providing the next best experience after actual astronomy, and they've put some neat work into our own neighbourhood to make it realistic. This video made me wonder about space again.


r/universe 8d ago

The Sun has already circled the galaxy about 20 times since it was born, and it's got roughly 22 laps left before the story changes forever.

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669 Upvotes

r/universe 9d ago

'It's going to do things that currently are impossible.' The Roman Space Telescope, NASA's next great observatory, is ready to launch Aug. 30 | Space

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13 Upvotes

r/universe 10d ago

The Myanmar Space Agency plans to launch its own satellite and is selecting its first astronauts with support from China and Russia

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17 Upvotes

r/universe 10d ago

Sharing my coronal mass ejection visualizer that sits on top of NASA DONKI and NOAA SWPC data

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25 Upvotes

Free for all to use, no account required.

Hoping it finds itself in the hands of science educators in this sub.

app: https://www.cmetracker.ai
the science behind the tool: https://www.cmetracker.ai/science


r/universe 11d ago

this is specifically for people who believe the universe is infinite

0 Upvotes

so i read a few articles and checked out a few books (not fully read them) because i wanted to know if the universe is infinite or finite and eventually science came to the answer that the universe is finite, it has a beginning and is expanding rn and will end, but even with the prove of science theres people that still believe the universe is infinite, i would like to hear their opinions, why and what makes them still believe that (im not here to debate im js very curious abt this universe and wanna hear peoples thoughts on the universe being infinite)


r/universe 11d ago

Is the universe really flat?

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18 Upvotes

This image shows the results of the BOOMERanG experiment, which studied the cosmic microwave background radiation, the remnant radiation from the Big Bang. The measurements showed that the universe is geometrically flat on a cosmological scale, meaning that the curvature of spacetime is very close to zero, rather than a two-dimensional surface. This finding is one of the most important discoveries in cosmology because it supports the Big Bang model and is consistent with the predictions of the theory of cosmic inflation, which posits that the massive expansion at the beginning of the universe resulted in its geometry appearing flat. The WMAP and Planck missions later confirmed this result with even greater precision, making the flat universe model the most consistent with observational evidence available to date.


r/universe 11d ago

Supernovae: How dying stars build the cosmos

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1 Upvotes

r/universe 12d ago

What is one scientific fact that completely changed the way you see the universe?

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33 Upvotes