Jackie Wattles, CNN



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Meet the 4-person crew spearheading SpaceX’s daring Polaris Dawn mission

SpaceX’s latest attempt to push the cosmic boundaries is set to kick off this week with a mission called Polaris Dawn: a nail-biting, five-day trek to orbit with a crew of private astronauts traveling into Earth’s radiation belts and hoping to conduct the first commercial spacewalk.

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Why it’s so difficult to land on the moon, even five decades after Apollo

Hundreds of thousands of miles beyond Earth, a phone booth-size spacecraft is en route to take on a challenge no vehicle launched from the United States has attempted in more than 50 years.

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Why it’s difficult to land on moon five decades after Apollo

Hundreds of thousands of miles beyond Earth, a phone booth-size spacecraft is en route to take on a challenge no vehicle launched from the United States has attempted in more than 50 years.

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