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John Johnson

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Top John Johnson Articles

Displaying items 45-55
  • Evidence suggests water exists on the moon

    Evidence suggests water exists on the moon
    Space scientists have found the strongest evidence yet that water exists on the moon, a discovery that helps complete a picture of a water-rich solar system and that could make colonizing our nearest neighbor in space much easier than previously thought....
  • Awaiting a puff of moon dust

    Awaiting a puff of moon dust
    In the predawn hours Friday, while those on the West Coast still snooze, a rocket is scheduled to punch a 13-foot-deep hole in a crater at the moon's south pole that hasn't seen sunlight in billions of years. The purpose: to find out whether ice lies...
  • NASA's moon crash is no spectacle, but could be a success

    NASA's moon crash is no spectacle, but could be a success
    As entertainment, NASA's moon punch mission was more "Heaven's Gate" than "Raiders of the Lost Ark." As science, however, it might still qualify for blockbuster status. Huddled in sleeping bags and tents, hundreds of people had gathered on a chilly Bay...
  • Scientists try to calm '2012' hysteria

    Scientists try to calm '2012' hysteria
    Is 2012 the end of the world? If you scan the Internet or believe the marketing campaign behind the movie "2012," scheduled for release in November, you might be forgiven for thinking so. Dozens of books and fake science websites are prophesying the...
  • NASA moon crash did kick up debris plume as hoped

    NASA moon crash did kick up debris plume as hoped
    NASA's recent lunar-punch mission apparently was not the high-profile flop it first appeared. Officials at Ames Research Center in Northern California, which managed the mission, released images Friday that clearly show a plume of debris from the...
  • Fossils of North America's smallest dinosaur identified

    Fossils of North America's smallest dinosaur identified
    Scientists have identified the fossilized remains of the smallest dinosaur yet discovered in North America, a house-pet-sized creature that would have scurried between the legs of its larger relatives. The new species, Fruitadens haagarorum, weighed less...
  • Mars may have caves, scientists say

    Mars may have caves, scientists say
    Caves were some of the earliest refuges for human beings on Earth. Could the same be true for future pioneers on Mars? Glen Cushing, a space scientist with the U.S. Geological Survey, thinks so. He said he has found evidence of an extensive cave system...
  • Masten Space Systems takes lead in Lunar Lander Challenge

    On Friday, only days after NASA tested its next big-ticket rocket, a ragtag group of space junkies in the Mojave Desert flew a bargain-basement rocket ship that could be the real future of spaceflight in the 21st century. -------------------- FOR THE...
  • For Mars rover Spirit, it's do or die

    For Mars rover Spirit, it's do or die
    NASA scientists said Thursday that they had come up with a plan to free the stalled rover Spirit from its Martian sand trap but also warned that the plan might not work. If it doesn't, the popular robot could finally reach its end. Rover managers will...
  • 'The moon is alive,' NASA says after water discovery

    'The moon is alive,' NASA says after water discovery
    Scientists have found "significant" amounts of water in a crater at the moon's south pole, a major discovery that will dramatically revise the characterization of the moon as a dead world and likely make it a more attractive destination for future human...
  • Scientists zero in on reason for mammoths' demise

    Scientists zero in on reason for mammoths' demise
    About 15,000 years ago, North America was home to an astonishing number of large plant-eating mammals -- giant sloths, mastodons, mammoths. A thousand years later, they were all gone, wiped from the face of the Earth with sudden finality. Scientists have...