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  • 国家地理-2008-04-19 New Search For ET 寻找外星人(下)

    Is anyone out there? For over 40 years scientists have been searching for extraterrestrial intelligence, but theyve found nothing. Now the new Allen Telescope Array, a string of 350 radio telescopes, is being built 300 miles north of San Francisco a...

  • 国家地理-2008-04-17 New Search For ET 寻找外星人(上)

    Is anyone out there? For over 40 years scientists have been searching for extraterrestrial intelligence, but theyve found nothing. Now the new Allen Telescope Array, a string of 350 radio telescopes, is being built 300 miles north of San Francisco a...

  • Alien Neighbors 寻访外星人 14

    "...what's more, You can start to say perhaps what the planet's made of, and you can follow it in its orbit. You can understand it in much more detail." In the future, the revamp ed Hubble Space Teles...

  • Alien Neighbors 寻访外星人 13

    "Well, the way we look for planets is actually very easy. We can't see the planets orbiting other stars because the glare of the star is just simply too great. It wipes out the planets' light. But wha...

  • Alien Neighbors 寻访外星人 12

    How likely that technology will destroy those who invented it? The Drake Equation doesn’t exactly narrow the field. Depending on the variables, the number of intelligent civilizations could be zero...

  • Alien Neighbors 寻访外星人 11

    We have reasons to suspect, based on recent high resolution photography of the surface, that there may be a subsurface ocean there. And where we find water and where we find the right mix of organics,...

  • Alien Neighbors 寻访外星人 10

    …cold conditions that earth has to offer. Professor Freeman believes these rugged microorganisms are probably capable of surviving on Mars. Mars is certainly our best bet for finding life in the inn...

  • Alien Neighbors 寻访外星人 9

    He wears gloves and cleans his tools with alcohol to avoid contaminating the ancient salt samples with modern microorganisms. "The salt round about us was crystallize d out 260 million years ago, and...

  • Alien Neighbors 寻访外星人 8

    (NASA Administrator Dan) Golden accepts that the search for life on Mars is not over. "If we wanna find out what Mars is like, what its weather patterns are like, what its geology is like, where there...

  • Alien Neighbors 寻访外星人 7

    “And so with Magellan we’ve got the first chance, one of the first chances, ok, to really get a complete map and view of it.” The Venusian landscape has a desert-like appearance, but it’s a go...

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