gray786 (January 1, 1970 at 12:59 am)

it saddens me that this man didnt live longer then he did. absolutely brilliant and one of my heros.RIP carl

trexatron7 (January 1, 1970 at 12:59 am)

carl sagan is so cool

Eric21ND (January 1, 1970 at 12:59 am)

Clearly intelligence here on Earth has a long way to go.

evacuationplanb (January 1, 1970 at 12:59 am)

he's referring to one of dwarf planets that were found about that time; Sagan was a proponent of adding them as official planets, this controversy finally ended when astronomers decided to give them a distinct category, which of course Pluto was put into recently.

KhanIndustries (January 1, 1970 at 12:59 am)

They should have a guy like this on today's TV 24/7. Instead they put on idiot preachers and televangelist.

evacuationplanb (January 1, 1970 at 12:59 am)

interesting idea, the problem with the equation is it has to make the assumption earth is a normal planet, its possible that the earth is one in a million... that would still leave millions of ET civilizations, however it would be more likely that they are extremely dispersed. It really depends on how likely you think life is. BTW i really liked Webbs book, I got it for my Bday.

envision91 (January 1, 1970 at 12:59 am)

3:20 he says we have 10 planets in our system... wasnt it only 9?

karaokemaschine (January 1, 1970 at 12:59 am)

i like thinking about these things because it`s a mix of imagination and logicly forced facts... with the aid of logic and scientific thinking you can explore the universe in your mind which is a great thing

th3w4tchm3n (January 1, 1970 at 12:59 am)

smelled not smeeld lol

th3w4tchm3n (January 1, 1970 at 12:59 am)

Enrico Fermi smeeld a rat in all of this.Wikipedia/google: Fermi's ParadoxOr check out Stephen Webb's book about it (I think it is even on Google Books now)