and how do we know that?
2007-11-27 10:28:42 · 6 answers · asked by Dean W 1 in Science & Mathematics ➔ Astronomy & Space
unknown
we don't even know its shape
The "observable universe",
(the part of the universe we CAN see)
is a sphere with a radius of 46.5 billion light years
this is as far as we can see in ALL directions in space
thats about 273 TRILLION miles in each direction.
(273,350,241,000,000 miles)
and there IS more past that,
its just toooooooo far and fuzzy to be able to see it
2007-11-27 10:34:39 · answer #1 · answered by Mercury 2010 7 · 0⤊ 0⤋
It is about 156 billion light years in diameter.Its age is about 13.7 billion years old and the Universe consist of 125 billion galaxies.
2007-11-27 20:17:09 · answer #2 · answered by ChrisCT 4 · 0⤊ 0⤋
nobody knows since the universe is fast expanding. it was first found out by HST that the universe is fast expanding.
HST= Hubble Space Telescope
2007-11-27 23:43:12 · answer #3 · answered by SIMONE 5 · 0⤊ 0⤋
It is the same size as a Ford Pinto, but we are all much smaller than we seem.
2007-11-27 18:39:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Really, really, really unimaginably massive. Actually, so big it is immeasurable and may well be infinite.
2007-11-27 18:32:34 · answer #5 · answered by Anonymous · 1⤊ 0⤋
very big.as big as my bank balance
2007-11-27 18:36:52 · answer #6 · answered by chas c 5 · 0⤊ 0⤋