content: *At this time.   Humans have only been around for a fraction of an instant in the existence of the universe as we know it.  For all we know, life may have existed on mars - but we weren't around to witness it.  The odds are staggering to find ET - and if they even did send a transmission - would they still be alive after all the time it would take to reach Earth? IMO - looking for ET is a colossal waste of money.