Wednesday, November 23, 2011

10 mind-bending facts about the universe

From neutron stars to multiple dimensions to life on other planets, here are cool facts about the universe that might make your brain hurt.

1. The universe contains around 50,000,000,000 galaxies, each of which has between 100,000,000,000 and 1,000,000,000,000 stars.

2. At the speed of light, time stops.

3. Dark matter makes up 83 percent of the matter in the universe, but we can’t see it and we don’t know what it is.

4. Time passes more slowly in orbit around the earth meaning returning astronauts arrive home slightly younger than if they had spent the same amount of time on earth.

5. Atoms are 99.9999999999999999% empty space meaning all the matter making up the entire human race could fit into a sugar cube.

6. Just a thimbleful of a neutron star would weigh over 100 million tons.

7. Sagittarius 3, an interstellar gas cloud, contains a billion, billion, billion liters of alcohol.

8. The most powerful explosions ever witnessed in the universe are gamma-ray bursts that are trillions of times brighter than our sun.

9. In quantum physics causality can work backwards meaning our choices in the present can effectively determine what occurred in the past.

10. According to some models of cosmology, there are an infinite number of universes with an infinite number of people.

Source: MSN news

Do you think life exists beyond our world?

96 comments:

  1. yes I do think so, I can even tell you that somehow in the futur , people are going to be visiting the universe or might be even living there.

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    1. You do realize we live in the universe... right?

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    2. we live on planet earth you dummy

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    3. ^^^This conversation....priceless.

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    4. That conversation has so much win in it lmao.

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    5. LMAO! that's the funniest thing i ever read =)))))

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    6. Do you know that there are things called multiverses

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    7. this is too funny

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    8. That person is not a dummy! We do live in the universe. Since there is believed to be no "center" or "edge" of the universe, there is no particular reference point with which to plot the overall location of the Earth in the universe. The earth rotates, it's not sitting on anything. The earth is in a part of space that has oxygen, and gravity which can sustain life.

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    9. no real part of space has oxygen or gravity. the earth has oxygen, and objects have gravity. everything has gravity. also space has a center, because it expands. expanding objects start somewhere, so that is the center. space is not infinite, that notion is silly. ever heard of the CMB, it is a map of the microwave radiation of the early universe, we got the radiation from it bounding off of the edge of the universe and towards us. IF THERE IS AN EDGE, IT IS NOT INFINITE.

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    10. Then what is after the edge, It is not that agree or disagree with your statement. I have always wondered what is after the edge, if there is a edge.

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    11. Back to the question I believe it is impossible for life not to be out there...... The odds are so high for this that they can't be counted...

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  2. yes even i agree............

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    1. how much time and litres of gas would it take to get to sagitarius 3 and once we get there is there a way to use some planets gravity to catapult back to earth so that we don't need the gas tanks and can fill them up with alcohol? :)

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  3. Sagittarius 3 sounds like a great place to live.

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  4. of course some form of life besides that on earth has to exist in all the vastness of space

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    1. I agree, and why would you even think that planet earth,the tiny planet we live on, would be the only place in the entire universe where life would be possible.

      ... and if the universe is infinite, would you really think we would be the only life...? I don't think so... :)

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    2. the universe is not infinite. something that expands must have a center, and an infinite object cannot have a center. something created this universe, the big bang or big expansion, so that was the center. IT IS NOT INFINITE

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    3. The expanding universe theory is just a theory... There are many other theories concerning the universe's ending, and whether it's infinite or not. You are completely wrong btw, the universe could be expanding forever. Anyways there are many different scenarios predicted concerning the expansion of the universe, In some the universe comes to an end, in others it collapses into some sort of a singularity. Concluding that we don't know and we can't really say, only predict and pressume. So please don't go around just making statements like you know best, it really annoys me.
      Thanks (sorry for the spelling mistakes btw I'm not fluent in English)

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  5. yes their is life on other planet if we just explore other galaxies mars supported life

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    1. well we dont know that curiosity hasn't found anything so far.

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  6. Very interesting list. But shouldn't item #7 be Sagittarius "B", not "3"?

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  7. I like pickles.

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  8. My cats breath smells like cat food

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  9. My cat food tastes like pickles

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    Replies
    1. Too bad no one gives a fuk

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  10. i have to poop real bad

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    Replies
    1. can you please stop, it's kinda anoying, and no one gives a 'SHIT' !!!

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  11. Anyone above this is dumb

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  12. Most of these are a bit simplified, but 9 is just misleading. Humans don't operate at quantum scales, for the most part. And 10 is a hypothesis, not a fact.

    Nonetheless, thanks for helping educate the masses about how freakin' amazing the universe is.

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    1. highly agree how amazing the universe is, just imagine how much more amazing is the one who made it.

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    2. Who are you saying made it ? God there is no such this as a god! I love it how people think thet everything in the univers was made bye one being of some sort I mean come on lol are you for real

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    3. Now as an atheist I don't believe in a God but I do believe that when your making fun of someone you should spell your words correctly and use the correct words. Not doing so leaves us all open to stereotypes because one person wants to feel different and join a crowd without a firm belief in what they assert or a firm education for that matter.

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    4. To the previous poster:

      While I fully agree with your opinion, you have made a mistake yourself when you spelt "you're" as "your (making fun of someone)". :P

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    5. LOL, funny conversation again :-)

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    6. I MADE WHAT THE FUCK I SEE BY SMOKING GOOD WEED AND BEING INTELLIGENT..KNOWING I CANT TOUCH EVERYTHING I FEEL, AND FEELING EVERYTHING I TOUCH... AS AN ACTUAL FACT OF MY HIGHER MIND...SO QUANTUM PHYSICS APPLIES TO GOOD PUSSY

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    7. August 4, 2012 at 7:27 AM - Is a girl

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    8. I would like to be a girl

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  13. Number 2 is mistaken. Time doesn't stop, time just becomes undefined. There is an equation to figure out the amount of time experienced by an a object moving close to the speed of light with respect to its velocity called gamma. The equation is 1/(sqrt(1-(v^2/c^2))) so as the velocity approaches the speed of light the denominator becomes closer to zero and when it finally reaches zero the value becomes undefined. So saying that time stops is slightly erroneous. We simply do not know exactly what happens at the speed of light because we currently can't reach it.

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  14. Yes, I do believe there is life outside of our universe. If not, it's an awful waste of space. A quote from one of my favorite movies. Seriously though, we can't be the only beings that exist in all the vastness of space. I often wonder who they are, where they are, what they look like and if they are more highly evolved than ourselves ... what they could teach us ... what might we be able to teach them? So fascinating!

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    1. Technically there is no such thing as "outside of the universe" due to the term "universe" encompassing all matter. Life simply cannot exist without a material base.

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    2. THEY WOULD FUCK US..WE'D HAVE TO KILL THEM ...PROBABLY GOT EYES AS BIG AS YOUR WINDOWS...RAM TWO AIDS INFECTED DILDOS IN THEM SHITS...THIS HERB SMOKES NICE...LOL

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    3. Perhaps they could teach us how to love each other - we on the other hand are well qualified to teach them how to kill each other .........

      We are here for just a moment ...... for example, the moment I have just mentioned has past, never to return and can never be repeated. There are times in our lives we do and say things that we regret - they cannot be undone - therefore, treating each moment as our last, showing love and kindness to our fellow man will make life richer, not only for ourselves but more importantly others.

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  15. can someone further elaborate on number 5 for me. im a little confused on a conceptual level, and not being a science "dweeb" doesn't help.

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    1. http://www.youtube.com/watch?v=kypne21A0R4

      Google, your best friend. If you don't like to read search for videos.

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    2. atom are made up of particles, but particles don't take up 100% of space in atoms, and atoms and molecules don't take up 100% of the space between each other. over 99% of atoms are empty space, because of how far spread out the electrons are when existing in their clouds around the nucleus. most of the stuff between the electrons and the nucleus is empty space, because the electrons are reeeeeeeeallly far away from the center of the atom

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  16. I used to get molested by my uncle.

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    1. I used to molest your uncle

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    2. I'd like to be molested by your uncle

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  17. Taking into account the laws of probabilty and the universe possible containing 100 billion planets. Yes there is life out there.

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  18. God is amazing.

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    1. Thank you ............... God xxx

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  19. Replies
    1. Dont post porn links on a science website, thats just a bad thing to do.

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  20. The universe is so great, life could be possibly out of the Milky Universe.

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    1. The Milky Way is a galaxy, not a universe

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    2. THAT SHIT MADE ME DROP MY WEED...OMG LOL

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  21. blackholes are shortcut to another universe

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    1. No black holes are a gateway to whiteholes (opposite of blackholes because it spews out matter not sucks it in)

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    2. Hence they're gateways to a new universe. That, or they're wormholes.

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    3. they aren't wormholes. if you went into one, it would kill you. rip apart your structure, and even if you were built again somewhere else, who is to say it isn't a clone of you, and the real one died in the transfer.

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  22. yeah, of course. we live in one galaxy but there's loads more which means there's probably definitely more life wondering if WE exist!!!

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  23. Replies
    1. Breaking news ............. You're not .......

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  24. We are all made of stars... Do you feel that? If not u are aliens....

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  25. This comment section has put a smile on my face. Thanks

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  26. We arent made of stars. And there may be other universes; something outside of this universe. Also, there must be other living things somewhere in the cosmos. There cannot be infinite space with only one inhabited planet.

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    1. Well if you guys want to be technical, according to the Drake equation wich determines how many different life forms should exist currently in the our galaxy. It says there could be a trillion diffrent forms of life in our galaxy at the highest projected number or at the lowest projected number 3. I know it's a very big gap but that's a real calculation with a real very thought through equation. Personaly I hope it's the earlier of the two beacuse other wise to me human existence is pointless if we're alone.

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    2. Interesting, but your numbers are wrong. There are different theories concerning the universe, it's structure, end, beginning etc, Some say the universe is infinite, others don't. We can't say for sure, but we pressume it is infinitely large. Here comes the mind fuck, if it is indeed infinite, everything that can happen has happened and will repeat itself an ifninite amount of times. Concluding there would not be a trillion (or whatever) different forms of life, no there would be infinite different forms. Of course I'm just a 16 year old kid, going way out of his league on a topic so abstract and strange as infinity and anything I said I cannot be sure of, but it's just my opinion on the matter.

      Cheers
      MK

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  27. don't go far to uni look around how you Designed.

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  28. wow you humans sure have a way at looking at one subject and getting all kinds of input. this will make it hard to try to work with you.

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    1. Is that good or bad?

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    2. They think they're some sort of alien! lol

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  29. CONFUSE YOURSELVES THEN SMOKE POT AND MASTURBATE TO THE STARS...LOL

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  30. Atoms are like a small galaxies - is it possible we are part of a bigger galaxy?

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    1. atoms are not at all like galaxies. at all. and we doo live in a galaxy. it is called the milky way galaxy

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  31. Electrons and protons are converted to neutrons am I right? Life is so confusing what if there are other people that live on different lands I know I sound dumb. But, what if is the question for Science.

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  32. number 3 is wrong. dark matter makes up about 23% of our universe. regular matter takes up maybe 4.6%, and the rest is dark energy

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  33. Most of the facts concerning the universe are dependent on certain situations, which have been predicted by astronomers. Of course there are some things which everyone agrees about and which are completely set, but plenty of things we are just not sure about. This is why so many of you disagree with each other, you can't really generalize theories or matters about the universe, because there is always a 'what if' which includes the one and excludes the other. Therefore I advise you to be carefull with what you say and how sure you are of it, because the truth is we cannot be absolutely sure about anything so abstract and confusing as the universe, The moment we think we know what we are talking about, someone else states something that is the complete opposite.

    Thank you! (and my bad for the spelling mistakes, I'm not a native speaker)

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    1. Max, your posts are very noteworthy. They show deep thought seasoned with a degree of humility. I wish more would take the time to consider other positions instead of trying to always tenaciously defend their point of view.

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  34. Human Race is all over universe! And these statistics are nothing but what Human Race is reading from Billions or Trillions of years!

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  35. If you want new astronomy readings then change calendar to 365 to 495 days a year.

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  36. 3d bioprinting = Immortality = go to stars

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  37. ...interstellar travel constant acceleration (Sun-Deneb: 1000g)... Earth...the 2 ships that will go formation flying for mutual assisting if there are problems...indestructible structures made of Hexapentas material, awaiting in airport the arrival of passengers... Day 1: zero-speed... THE SHIPS TAKEOFF►... navigation computer places on screen the spacecraft in the center of sphere...spherical\tridimensional\spatial Heading: Deneb... Antimatter rocket engines...ON... Here we go...goooooo!...1g...10g...100g...constant acceleration cruise: 1000g (9.8 kms/sec²)... Inside the living areas (the same as going submerged in water: constant acceleration downwards...less...constant thrust, constant acceleration, from water upwards)...the gravitational transformers, perfectly synchronized with the acceleration, running: 1000g constant acceleration toward the floor ↓↓(motors)↓↓...less...999g constant acceleration toward the ceiling ↑↑(gravitational transformers)↑ = 1g constant acceleration toward the floor↓... 8.5 hours: light-speed = 1c...the fusion reactor as an artificial sun illuminating the immense Vital Support Gardens to lowering, from their comfortable apartments, cheerful passage to the pool...the electromagnetic shield anti-radiation...antigravity fields generator run forward, working: light objects away from the path of the ship...and trajectory ship away from the heavy objects...superluminal-speed > 1c... 42.5 hours: reaches hyperluminal-speed = 5c... Day 508: Half Journey...1000 light years...high hyperluminal-speed = 1435.39c... OFF engines...a few minutes of weightlessness during maneuver...the ship rotates 180º around its axis...motors ON again and... ◄STARTS TO BRAKE... Day 1017 (2.79 years): End Path party...2000 light years...zero-speed... The forever young passage of the 1st Immortal Generation (3D Bioprinting...Telomerase...modified Biological Timers...) disembarks at destination: an extra-stellar planet which came errant to orbit of Deneb giant.

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  38. ...3D Bioprinting-Immortality (biological timers)... Forever young with modified Biological Timers...which are the biological timers?, where are them? (genes, hypothalamus...), how functioning them?, how can modify them (telomerase...) for maintenance the hormone´s production, enzymes, cellular regeneration...all Eternity at same level of the 18 years old?... Have to accelerate Research about Memory and the Space´s Colonization... Immortality comes...

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