Astrophysicists Count All the Starlight in the Universe
By their estimate, over the history of the universe, stars have emitted 4 times 10-to-the-84th-power photons into the visible universe (that's a 4 followed by 84 zeros).
from NDTV Gadgets - Latest http://bit.ly/2FNg5HB
from NDTV Gadgets - Latest http://bit.ly/2FNg5HB
Comments
Post a Comment