nasa says that water streaks appear during warm parts of the year but disappear during cold seasons and is caused by liquid water salty enough to remain to minus ten degrees fahrenheit. here s nasa astronaut john grunsfeld. we still have this question, did life on mars once and can we find out? we have intriguing clues about that story. still that begs the question about if life start owned mars some 3 1/2 billion years ago did any survive, is there any life on mars today? that s a fascinating question, one that s going to take some time to answer. but tech logically we can answer and we can answer it by sending rovers and we can answer it by sending people. i look forward to that day on our journey to mars. joining us now bill nye, the science guy, and the ceo of planetary society. bill, what s the big deal?
to get to the moon, then we could spend whatever time there we wanted. take a few days to come back to earth. it s right next door. mars is so much farther away. a journey to mars, at the shortest time possible to get there, would be six months. then we have to spend if we wanted to spend a significant period of time on the surface exploring, we d have to wait until the two planets come back into alignment. so we re talking about a mission that s several years long. because its so far away, the supplies that are necessary for us to be able to exist on mars, we d have to take them all with us. that s for a multiple-year mission, or send the supplies there ahead of time and hope it operates by the time our astronauts get there. then whatever challenges happen to the astronauts there, they have to be able to solve the problems on their own because it s so far away. the reward of being able to identify a microbe or any evidence that life ever existed on mars would certainly be the
and we could soon become number one in oil. because hydraulic fracturing technology is safely recovering lots more oil and natural gas. supporting millions of new jobs. billions in tax revenue. and a new century of american energy security. the new energy superpower? it s red, white and blue. log on to learn more. jon: take a look at this. this is intentional. this is a rocket booster they are testing out in utah. it is the largest the most powerful booster ever built for the space launch system. supposed to be fired for about two minutes at the agency s test facilities in utah. a significant milestone for the system, part of nasa s journey to mars. let s listen in to this thing roar just a bit.
waiting in line for an xbox video game console. the line quickly cleared. she paid and then left. paramedics treated 15 people for pepper spray burns. and a shopper shot in the foot outside of a walmart in myrtle beach, south carolina, early today. police say two men robbed a group of bargain hunters and cross creek mall in fayetteville, north carolina. the shooting began outside and then moved inside. no one was hit. police are looking for two suspects. pro and anti-government demonstrations held across egypt today. protesters paused for friday prayers. this ghon stra demonstration is dubbed last chance rally. a former prime minister has been renamed to the post by military leaders and asked to form a government of national salvation. egypt s interior ministry is responding to claims by a journ journalist who says that she was beaten and sexually assaulted by riot police. a spokesman says its police do not treat journalists or females in that manner and if she claims t
shuttle program is now over. astronauts completing their commission landing for the final time at the kennedy space center. up next for nasa, there is a next step, a journey to mars. the space agency getting ready to launch the rover curiosity to the red planet. tomorrow nasa will announce the landing site. dr.~michio kaku a physics professor at the university of new york is here with us to talk a little bit about more about this. where is the rover going. reporter: every two years nasa has a clear shot at marks ars, a window opens up. we are going to take skrapbg of it over thanksgiving. there are two landing sites one of which will be picked out tomorrow. the key thing is that liquid water once flowed freely on the surface of mars and journalists say follow the money, scientists say follow the water. jenna: eights a robot. reporter: it s a robotic