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The final and arguably most risky aspect of the mission, the re—entry and landing. when you send a spacecraft from the moon back to the earth that hits the atmosphere at about 25,000 mph and you have to lose speed before you get into the atmosphere because if you don't you can burn up on re—entry and your spacecraft disintegrates and that is not good for any humans on board. the spacecraft has systems and it is designed to slow it down as it comes through the atmosphere and it is a heat shield to protect the spacecraft which has to stand up to temperature is about 3000 celsius and the para...

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-- captions by vitac -- www.vitac.com anyone cheering president obama's new stance on same-sex marriage has vice president joe biden to thank. the president himself is now confirming what many had suspected that the vice president forced the president's hand when biden announced his support for gay marriage over the weekend and now we're hearing that's a sore subject at least among some white house insiders. our chief white house correspondent jessica yellin is working the story for us. what are you hearing over there, jessica? >> reporter: wolf, there are times when a president is...

And are in london. egyps state television is denying that report. and more math protests throughout the middle east. tunisians after days of demonstrations, they're reporting a newly appointed minister. and a major milestone, the repeal of doesn't ask, don't tell. though military leaders are not yet announcing a formal end to that policy. >> mexico drug violence hitting a fever pitchen and they're prompting an entire police force to quit in one mexican town and gunman killing an american missionary this week and now ranchers in arizona are demanding the state government do more to keep them an...

Compensation. and also finding land safe from flooding. >> i understand it is nearly impossible to identify who owns much of the land. there aren't a lot of records. everyone agrees this is one of the billest challenges right now. . what is the government doing to try to fix the problem and get permanent housing for many still living in these tent cities? >> well it is the government that ultimately does have the responsibility as the sovereign state to designate land for people who have no place to go. yes, most of the land is owned by very few people and there is no real good titling system ...