At 541 light years from earth is it the furthest star in the Orion Constellation. The biggest, brightest (non A-Type) star in our typical (night) sky is also one of the biggest discovered in our galaxy: Betelgeuse.
When you look up at the night sky (in any urban areas or those with sufficient light pollution.) The stars you see (think the constellations and other bright stars) with the exception of the super bright blue A-Type stars, they are usually no further than 500 light years away. We might be lacking critical, fundamental information about the universe that is currently impossible to observe, and we'd never know it.
#SCARY SPACE PHENOMENA WINDOWS#
What observation windows might we also missed? Or perhaps we're too early for an observation window. The time window to observe galaxies would have passed, and this observer would have no idea. This end of the universe is call the Big Rip.īut the real brain melting thing is that an observer 100 billion years in the future might see that there are no galaxies, and they would be correct. If the acceleration of the expansion continues to happen without end, this horizon gets smaller and smaller. Its possible that the entire universe might be legitimately a few hundred thousand stars, and thats it. It is possible that in the far future, when there are still stars burning and planets orbiting these stars, there the rest of the universe might be beyond this horizon. These things can no longer be observed.Īs the expansion of the universe accelerates, this horizon will draw closer and closer. Things will redshift out of existence, beyond the horizon of the universe. This is a possible fate of the universe if expansion continues.Įventually, the horizon of the universe get closer. Proxima Centauri May take 25 years for unmanned spacecraft to reach us going 20% the speed of light, but perhaps it’s impossible to transport actual life at these speeds without dying, so advanced civilisations have realised the futility of trying to contact other species and have simply given up. Perhaps interstellar transport is only theoretical, and any aliens capable of reaching us are unable to do so in an acceptable length of time. The fact that about 95% of the universe is made up of matter we can’t see or detect is pretty unsettling to think about.Īlso, while not a fact per-se, I like to think that perhaps the answer to the Fermi Paradox is that there are billions of advanced alien life forms out there, but they are physically unable to reach us due to to technological limitations. We could be hit by one of these with very little warning, and if it was reasonably close (in universal terms anyway) could wipe us out rapidly or cause a ton of damage. >!insert spoiler here!< Other subreddits you might like: some
#SCARY SPACE PHENOMENA MOD#
Mod posts Serious posts Megathread Breaking news Unfilter Please use spoiler tags to hide spoilers. Tags to use: Use a post tag to designate your post as a serious, on-topic-only thread. If you think your post has disappeared, see spam or an inappropriate post, please do not hesitate to contact the mods, we're happy to help. Spam, machine-generated content, and karma farming are not permitted. more >ĭo not post harmful misinformation. more >Ĭomment replies consisting solely of images will be removed.
#SCARY SPACE PHENOMENA MODS#
Mods reserve the right to remove content or restrict users' posting privileges as necessary if it is deemed detrimental to the subreddit or to the experience of others.
Soliciting money, goods, services, or favours is not allowed. tagged posts are off-limits to jokes or irrelevant replies. more >ĪskReddit is not your soapbox, personal army, or advertising platform. Posting, or seeking, any identifying personal information, real or fake, will result in a ban without a prior warning. more >ĪskReddit is for open-ended discussion questions. more >Īny post asking for advice should be generic and not specific to your situation alone. Your thoughts/responses to the question can go in the comments section. The title may contain two, short, necessary context sentences. You must post a clear and direct question in the title.
0 kommentar(er)
