... November 5, 2001 - Monday . Xiao-Gang He, National Taiwan University . An Accelerating Universe and Event Horizon . November 27, 2001 - Tuesday . ...
... L ?? 1000 years. ffl 1% of 10 9 years = 10 7 ) 1,000,000 civilizations per Galaxy ffl All Life is therefore significant: 1 Civilization per 100,000 stars in Galaxy ffl 3,000 stars = Naked Eye Horizon ffl No Parallel Civilizations ffl If you meet an ET ...
... the point where kT = neutrino rest mass the universe has some horizon size, r hor and variations in neutrino density can only ... The total mass within the horizon is approximately . r hor 3 M nu 4 . ...
... The gap in the data occurs during that time of year when the host galaxy was above the horizon only in the daytime. Five optical bands are shown. ...