lee cowen, cbs news, los angeles. >>> could the 49ers beat the new york giants without frank gore? his replacement, kendall hunter, thought so. we'll show you why. [ man ] i got this citi thank you card and started earning loads of points. you got a weather balloon with points? yes, i did. [ man ] points i could use for just about anything. ♪ keep on going in this direction. take this bridge over here. there it is. [ man ] so i used mine to get a whole new perspective. ♪ [ male announcer ] write your story with the citi thankyou premier card, with no point caps, and points that don't expire. get started at thankyoucard.citi.com. weekend. "the immortals opened at number one. the my . >>> the gods of ancient greece rule the box office this weekend, opening up at number 1. the mythological action movie took in $32 million on its opening weekend. jack & jill, a comedy with adam sandler, opened in second place with 26 million. puss in boots and jay edgar. >>> the 49ers would have to extend their winning streak without frank gorda. start the clock. gore has 6 carries, no yards. knee and

as lee cowen reports from the jet propulsion laboratory in pasadena, california, getting to mars it only half the problem. >> and liftoff of theat las five with "curiosity." >> reporter: with this morning's launch, nasa's $2.5 billion rover, antly named "curiosity," gab its 354-million-mile journey to mars and so far it's right on target. >> everything is looking good. >> reporter: the vehicle is the cadillac of mars rovers. it weighs almost a ton and powered by a nuclear reactor. in fact, nasa hasn't tried landing something this large and this complex since the lunar modules that put men on the moon and as exciting as today's launch was, the reality-- >> mars really is the bermuda triangle of the solar system. >> reporter: a landing has nasa nervous, especially its chief engineer rob manning. >> its maiden flight is actually-- there are no dress rehearsals. it has to work the first time. >> reporter: "curiosity" is too heavy to bounce to the surface inside a series of balloons like the previous mars rovers. instead, "curiosity" will have to be lowered the last 200 feet on cables suspend