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Topic: Unmanned Space Exploration

Top galleries, list articles, quizzes

  • Kepler epitaph? Eight most intriguing finds of troubled telescope.

    Kepler, the space telescope designed to help us find other Earth-like planets, is on the fritz. Scientists hope they will be able to fix it remotely, but if they can't, its brief, brilliant career could be over. Here are eight of its most important discoveries.

  • Briefing How dangerous are near-Earth asteroids? 5 key questions answered.

    On Feb. 15, asteroid 2012 DA14, discovered a year ago, cleared Earth by a scant 17,200 miles. The same day, a smaller, unrelated asteroid that no one saw coming exploded 12 to 15 miles above Russia’s Chelyabinsk region. Events that day highlight the risk that near-Earth objects (NEOs) can pose – although to some extent, humans can counter them.

  • Man and Mars through history

    A look back over centuries at man's attempt to uncover information about the 'Red Planet.'Sources: NASA, American Museum of Natural History, and Scientific American

  • What makes a planet livable? Five things scientists look for.

    Scientists have so far detected at least 550 planets outside the solar system – and another 2,000-plus await confirmation. But how to pick out the ones that may be Earth-like havens for life? Here's what one team looks for in assessing any planet's potential habitability and its similarity to Earth's properties. 

  • In Pictures China's space program

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Editors' picks:

Doing Good

 

What happens when ordinary people decide to pay it forward? Extraordinary change...

David Eads sits among old computer parts waiting to be recycled or refurbished by FreeGeek Chicago volunteers.

David Eads runs FreeGeek Chicago, 'an Apple Store for the rest of us'

FreeGeek Chicago gives volunteers hands-on training in restoring old computers to sell or recycle – while they earn credits toward taking home their own desktop or laptop free of charge.

 
 
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