Porque devemos ir para o espaço - Stephen Hawkings video Porque devemos ir para o espaço - Stephen Hawkings video http://www.nss.org... Porque devemos ir para o espaço - Stephen Hawkings video Porque devemos ir para o espaço - Stephen Hawkings video Why We Should Go Into Space Why We Should Go into Space Stephen Hawking: Why We Should Go Into Space Porque devemos ir para o espaço - Stephen Hawkings video at NASA’s 50th Anniversary lecture in 2008 2008 speech lecture in 2008 Stephen Hawking Stephen Hawking http://www.nss.org/resources/library/spacepolicy/hawking.htm