2006-09-04 05:15:51 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
It depends on what you consider a single object. Some scientists say that the largest known object is a 200 million light year wide structure, conformed by galaxies and gas bubbles called Lyman alpha blobs.
http://www.usatoday.com/tech/science/space/2006-07-27-biggest-blob_x.htm
2006-09-04 05:27:04 · answer #1 · answered by Nacho Massimino 6 · 0⤊ 0⤋
just to give you an idea of how long a light year is the speed of light is 186,000 miles per second. so 186,000 miles X 60 = 11160000 miles a minute... 669600000 miles an hour... 16070400000 miles a day.... 5865696000000 miles a year... So you get the idea the universe is HUGE!!!. It is so huge that we can only see about 12 billion light years into the unvierse since that is when they figure the earth was created.. we can only see that far ( in theroy) because the light is still traveling back from the far out reaches of space. So to answer you question is impossible since we know so little and are restricted to knowing what we want to know from the unreal distances of space.
2006-09-04 12:38:47 · answer #2 · answered by skinnywayne 3 · 0⤊ 0⤋
Larger galaxies are hundreds of thousands of light years across (diameter). These are in my mind the largest individual "things" in our universe. Of course there are clusters of galaxies that are millions of lightyears across.
Distances between things can be very great, while we can see the radio background of our universe I tend to think of Quasars as the most distant "things", the furthest of which is estimated to be about 13 billion light years away (these objects are not that big across though (relatively)... only about the diameter of our solar system).
It is thought that our observable universe itself is less than 28 billion light years across.
2006-09-04 14:00:30 · answer #3 · answered by iMi 4 · 0⤊ 0⤋
I`d go for the beam of light that is emanating from the furthest star that we are receiving light from, something like 10 billion years worth give or take a few noughts.
2006-09-04 18:30:30 · answer #4 · answered by Spanner 6 · 0⤊ 0⤋
it's not really possible to answer that because we don't know what the longest thing in the universe is.
to give you an idea, to travel from Earth to the next nearest galaxy, Andromeda, it would take 2.5 million light years...
2006-09-04 12:21:19 · answer #5 · answered by Showaddywaddy 5 · 0⤊ 0⤋
The longest thing would be at max x light years long if x were the yrs after creation of the universe.Frankly i dunno dude.
2006-09-04 12:27:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋
The answer maybe Doubled by the time you have read this answer.
2006-09-04 16:31:32 · answer #7 · answered by bigbill2t 1 · 0⤊ 0⤋
d lngst is dat whc is d longr thn d wun bfore... what was your question?
2006-09-07 18:50:48 · answer #8 · answered by lady_in_blue_109 3 · 0⤊ 0⤋
Too long.
2006-09-04 19:28:04 · answer #9 · answered by mclamb63 3 · 0⤊ 0⤋