New study says universe expanding faster and is younger - Sensationalist Headlines

https://abcn.ws/2GDZ3sw

So she's bigger than she says, and lied about her age. Typical. Can't trust universes at all these days.

and now she's got smut circulating on the Internet of her black hole.

big RIP?

This might also make a theory plausible that we are one of the earliest civilizations in this universe. And the reason why we are alone and unfortunate on finding other intelligent life on other planets is that our evolution started way prematurely. If for some reason the whole humankind dies out, our findings about the early universe and big bang might come useful for other future civilizations who won't have the chance to see it with their own devices since the universe would be much bigger for them to peer back to the past in some million years. Basically, we could become the "ancient aliens" for some civilization in the future. Or, if we still survive, just go for the WH40k route.

when the universe is suddenly younger then you though https://media.giphy.com/media/10IHTUCIIQkwi4/giphy.gif

The only reason the heat death of the universe has not happened is all the friction Cosby generates.

#RedShiftYourUniverse

It amazes me that the Hubble Constant is something that is so difficult to measure, we are still finding completely different results for it every time: https://files.facepunch.com/forum/upload/113610/8cac274b-27f0-48d6-ba1b-915702b95e68/image.png This sentence is even more baffling: astronomers reported further substantial discrepancies, depending on the measurement method used, in determining the Hubble constant, suggesting a realm of physics currently not well understood in explaining the workings of the universe. So cool.

Ya'll think its cool but its probably some death star wrecking havoc in the universe or Thanos doing his thing

I've always kinda been an advocate for this theory. Probably just because it makes me feel special

In my opinion, it's not necessarily unfortunate that we may not find other intelligent life out there. We have no guarantees a vastly more advanced civilization than us is going to be a benevolent one. It WOULD make life a lot more interesting though... unless the alien life is Tyranids or eldritch cosmic horrors or some shit, no thanks.

Keep recalculating and you guys might reach the correct value of 6,000 years.

Seems a bit off though to be getting different results every time they measure it, would that not imply what they're following isn't the best thing to use?

If the universe is younger than we thought, and we can't see any signs of megastructures, we might be the advanced progenitor civilization in the universe, or at least in this galaxy

Well, the issue is that measuring this constant is very difficult, not aided by the fact that the universe is fucken huge. I'll try to provide a TL;DR. I'm gonna be simplifying a bunch of things to explain this so don't hurt me scientists of Facepunch Imagine a fragmentation grenade in space. When it blows up, the sharp grenade fragments are free to move out forever as they don't suffer any resistive forces like air. Try to think of the big bang as the same thing, an explosion in space that is free to spread out without stopping. The universe, however, is not a grenade, so it doesn't have a center explosion point. Instead, imagine a super stretchy piece of fabric which you stab some pins into. If you stretch the fabric uniformly, the pins themselves never actually move, but rather the space between each pin increases. This here creates a very fascinating thing that is hard to explain without visuals. Go onto this website and try the little demo at the bottom. The demo consists of two pictures with a bunch of dots on them, but the second layer has been expanded by 5% (aka we stretched the fabric a little bit). When I align two dots together, this results in everything looking like it's expanding away from it: https://files.facepunch.com/forum/upload/113610/1e0ca75c-6d22-4554-8858-fe8367843d7e/image.png Picking two completely different dots now makes it look like they're all expanding away from it: https://files.facepunch.com/forum/upload/113610/a332fc4a-43c7-4edc-9e29-98ebc95d055b/image.png And the interesting thing is that the further away a point is from the "center", the larger the distance between it's original position and it's final position. This complicates things because it means that the universe is not expanding at a constant rate, but rather its expansion is accelerating. This also means that you are technically the center of the universe! But more interesting is what happens to light... As you know from the electromagnetic spectrum, light is a wave and depending on the wavelength of the wave, the color of said light can be different. https://files.facepunch.com/forum/upload/113610/5fed2347-36a5-47ff-aa41-f9883e8a5800/image.png So because of the expansion of the space between galaxies, the light traveling through space gets stretched out, in a term called Red Shifting (Because the yellow light starts becoming red as the wavelength increases). And to keep up with the fabric explanation, you know what happens when you place a heavy object on fabric? It causes it to bend. https://files.facepunch.com/forum/upload/113610/1c8c22c7-91c6-4a2a-a4cd-77a5fbf37f8b/image.png If you place something less heavy close to the bend, it will fall towards the center of the bend (aka Gravity). Light, which is traveling directly on top of the fabric, as a result will also bend, resulting the the position of the light being completely off to where it actually came from https://files.facepunch.com/forum/upload/113610/dada1451-8951-4282-a9db-c21050e9048d/image.png The Hubble Constant, which is the value that is used for all things spacey, is calculated by measuring the red shift of light from a galaxy (so comparing the observed color to it's original color) and by measuring the distance to that galaxy. This obviously is super incredibly difficult because the universe is fucken huge, so it's the reason the value changes so drastically. We can't physically go and measure the distance between galaxies, we have to estimate it while being at the mercy of so many different factors that are actively trying to screw up our measurements.

Urgh, thinking we're the most advanced race, that sounds garbage.

We're all Protheans now

THERE IS AS YET INSUFFICIENT DATA FOR A MEANINGFUL ANSWER

The thing that saddens me the most about the universe expanding is that at some point everything will move too far away for us to reach unless we get into scifi ftl stuff. Even the closest galaxies will be too far away and we'll be trapped in a void of nothing.

https://files.facepunch.com/forum/upload/1250/4a28d8c0-b1db-41d8-88f1-9060d6f06de4/oog.jpg

The probability of our civilization's history surviving long enough for aliens to even stumble across it in the future is incredibly small. On top of that, they would have to come across that specific big bang information, through countless ages of culture, history and knowledge accumulated. My guess is humanity and any trace of it wouldn't even survive up to the point where an alien race is capable of traveling between stars to even begin an archaeological dig. Most of our information these days are kept on computers which can be erased by a number of things. Beyond that is paper, which is decomposes after a while. I sincerely doubt anyone is going to write any of this information down on stone, which will last the longest - but not forever, due to erosion.

Calling it the 'Hubble constant' just confuses things further. It's more aptly called the 'Hubble parameter'.

Well the only thing we could possibly rely on to preserve our history and information outside our planet would be the artificial satellites and probes. Though even they are also prone to danger, especially the ones around Earth's orbit, due to space debris. Probes like Voyager and Pioneer could survive way longer, but we can only keep guessing what might happen to them. And whether they will stay intact for anyone else to find and obtain anything useful from them.

In 65 million years the fossil record will contain an estimated number of human bones that is insufficient to reconstruct an intact human skeleton. The only lasting sign we leave behind when we finally graveyard on this planet is background radiation from our decades of open-air nuke tests blowing up tiny Pacific atolls, and even that will fade away in a reasonable amount of time on the geological timescale. Our mistakes will not be recorded unless the universe is absolutely crawling with interstellar civilizations and we burn ourselves out a few hundred thousand years prior to our nearest neighbours stumbling over Earth.

Because of the vast, mindboggling amount of space, even sending out a billion Voyagers may not even have the chance of being found by aliens in the far future.

The study only suggests that the universe is like, 5% younger than we thought before.

If it's any sort of consolation, even if we were to achieve some pretty advanced interstellar travel tomorrow, we would never reach even the closest neighbour galaxy. We'd need to be able to travel at many, many times the speed of light to be able to reach the nearest galaxy.

It is a common misconception thinking that mankind will some day explore the "Universe" when in reality (as is according to the laws of physics as well as mankind's divine mandate) it is the galaxy that we are destined to rule.