>> i hope there will be one day. >> we've always wondered that. are there cows on the moon. we will get there some day. the question is how many cows are on mars. that's the other question they didn't ask. while they're all smiles, lindsey, space travel is a dangerous thing. they're not the first civilian to attempt to go to space. christa mcauliffe tried in 1986. coming up we'll speak with two of christa mcauliffe's former students and what they thought as they watched this rocket rise from cape canaveral wednesday. >> what do the local billionaires say about this? >> it is different in the sense that they're trying to raise up to $200 million for st. jude's children's hospital. of course, one of the persons