The countdown is on to commercial space travel. Today, Virgin Galactic founder Sir Richard Branson will unveil the world's first commercial manned spacecraft. 300 tourists have already booked a ticket – at $200,000 a pop.

Sir Richard Branson was live from the Mojave Desert on American Morning Monday with the first look at the new spacecraft.

The e-mails and allegations that the global warming threat may be exaggerated could have a major impact on climate change negotiations in Copenhagen this week.

Ground zero for the climate scandal has been Britain's University of East Anglia. Our John Roberts went directly to the source to dig deeper on this story.

Related: Key global climate talks begin in Copenhagen

The climate change summit that starts today in Copenhagen is bringing together officials from nearly 200 nations, including President Obama, who will fly there next week. One of the goals is to get countries to cut greenhouse gas emissions, which scientists say are heating up the Earth and doing damage to the world our kids and their kids will inherit.

But is the problem as bad as some people make it sound? Critics say e-mails swiped from a British university suggest researchers could be putting their own spin on reality. The controversy is creating political fireworks all the way to Washington. Our Jim Acosta has the report.

Former teen idol Kirk Cameron is on a crusade to debunk evolution. He's a born-again Christian and part of a group that wrote a new 50-page intro to Darwin's "On the Origin of Species" to mark its 150th anniversary.

Cameron and his group are handing out thousands of copies of the book on universities across the country. CNN's Carol Costello reports.

After the Apollo missions took man to the face of the moon, we came back with a few conclusions. One conclusion in particular is that it's pretty dry up there.

Recently NASA said it's found significant amounts of water on the moon, calling it a new chapter that could lead to a lunar space station. Jim Garvin, the chief scientist at NASA's Goddard Space Flight Center spoke with John Roberts on CNN's American Morning.

NASA announced yesterday there are traces of water on the moon. But before you pack your bathing suit, it's probably still too soon to start planning for a lunar outpost and swimming pools on the moon.

James Green of NASA says the moon is still very dry despite the discovery of traces of water.

James Green is one of the NASA officials who made the announcement yesterday. He is the director of the Planetary Science Division at NASA headquarters. Green spoke to John Roberts on CNN’s “American Morning” Friday. Below is an edited transcript of the interview.

John Roberts: Any photos we've ever seen of the lunar surface show it to be an arid and dusty place, yet this research shows maybe that doesn't tell the whole story. What did you find?

James Green: John, that's right. However we didn't find the swimming pools or even mud puddles as you point out. The water that we found is trapped in the rocks. In fact, the observations from the Moon Mineralogy Mapper over the last six months as it maps the entire moon show that this water is everywhere on the moon. And, in fact, it's variable in terms of its content.

NASA: There is water in lunar soil

But even with that said, the amount of water – it's drier on the moon than it is in our driest deserts. But it is a start in terms of looking more about what's going on at the moon, its origin, its evolution and we still have another big step to move where we're going to look at water that might be trapped in the permanently shadowed craters. We don’t know much about that yet.

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Joe Perry, lead guitarist of Aerosmith, is joining a star-studded lineup including Will.i.am, Sheryl Crow, Josh Groban, and Seal for a good cause. The group of musicians is calling themselves Rock Stars of Science.

They're heading to Capitol Hill today to raise awareness for critical, life-saving medical research.

Perry spoke to John Roberts and Kiran Chetry on CNN’s “American Morning” Thursday. Below is an edited transcript of the interview.

Kiran Chetry: We know you're in Washington. Today's the day of the big concert kickoff. What are you guys hoping to see happen with all of your efforts and all of your star power combined?

Joe Perry: Well, I think the whole thing is to show that there's a lot of glamor behind the career of being a scientist. And we clearly need scientists. A lot of studies have shown that America is falling behind in turning out scientists. There are a number of countries that are like far surpassing us in that and we need scientists and we need them now. I mean, they're the ones that are leading the charge in medicine and everything from global warming to having enough food on the planet, everything. And it's just a very important, very important cause.

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A group of scientists in Florida is trapping black bears. They're hoping to learn more about how they live and feed. The goal is to protect the animals, improve their quality of life and hopefully keep them out of people's backyards.

As CNN's John Zarrella reports, the hunt involves high-tech GPS collars – and low-tech desserts.

The sun is covered by the moon during a total solar eclipse in the Indian city of Varanasi on July 22, 2009. The longest solar eclipse of the 21st century cast a shadow over much of Asia, plunging hundreds of millions into darkness across the giant land masses of India and China. (PEDRO UGARTE/AFP/Getty Images)

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