What do you mean after all? Wasn’t it the consensus since forever that there was basically 0 chance of anything actually colliding because galaxies are mostly empty space? I’m pretty sure I read about that when I was a child.
Much more likely is that the galaxies will zoom relatively close to each other – say, a little under 500,000 light years away.
In To Sleep In A Sea Of Stars by C. Paolini, there is a group that aims to prevent or circumvent the heat death of the universe, although the post-human civilisation has barely touched a few star systems (<30 ly). In a similar fashion, I recommend to take the necessary steps to build up a galaxy defense force soon.
Took me a minute… I have to jump through many self made hoops to get new websites through my firewall’s DNS filter and I don’t enable http. It is however on archive. I’m probably the only nerd here with such masochistic network, but whatever. Thanks for the comment. Tycho was a character, that’s for sure.
The JWST has done it again. The powerful space telescope has already revealed the presence of bright galaxies only several hundred million years after the Big Bang. Now, it’s sensed light from a galaxy only 280 million years after the Big Bang, the most distant galaxy ever detected.
Prior to the JWST, we had no infrared telescopes with large enough mirrors to detect light from the early galaxies. The Hubble can see near-infrared light, but only has a 2.4-meter mirror. It found only one galaxy from the Universe’s 500 million years. The Spitzer Space Telescope was a dedicated infrared telescope, but it only had an 85 cm mirror. Not only does the JWST have a much larger mirror, but detector technology has advanced so much that the veil obscuring the early Universe is being lifted one ancient galaxy at a time.
When we hit the floor you just watch them move aside
We will take them for a ride of rides
They all love your miniature ways
You know what they say about small boys
astronomy
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