Most Recent

  • Tracking the Path of Green Slime
    Cyanobacteria gave us oxygen for the atmosphere and a protective ozone layer, and they led to the development of all the green plants in the world today. They can be found everywhere from the surface of the oceans to underneath
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  • Gravity's Telescope
    Using a technique known as "gravitational microlensing", astronomers hope to find planets in Earth-like orbits around stars halfway across the galaxy.
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  • Gravity’s Telescope
    Using a technique known as "gravitational microlensing", astronomers hope to find planets in Earth-like orbits around stars halfway across the galaxy.
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  • Evolution's Sweet Tooth
    How did intelligence evolve? A scientist studying differences between humans and great apes may have found a biochemical step in that direction.
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  • Evolution’s Sweet Tooth
    How did intelligence evolve? A scientist studying differences between humans and great apes may have found a biochemical step in that direction.
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  • Scientists Rehearse for NASA's Next (2004) Mars Landing
    With less than a year to go before the launch of NASA's Mars Exploration Rover mission, scientists have spent the last few weeks at a high-tech summer camp. The 10-day blind test, which ran from Aug. 10 to 19, used the Field Integrated Design Operations
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  • Scientists Rehearse for NASA’s Next (2004) Mars Landing
    With less than a year to go before the launch of NASA's Mars Exploration Rover mission, scientists have spent the last few weeks at a high-tech summer camp. The 10-day blind test, which ran from Aug. 10 to 19, used the Field Integrated Design Operations
    more...
  • Voyage of The Voyagers: First Quarter-Century
    When initially launched on August 20, 1977, the Voyager missions to Jupiter and Saturn were considered mission-capable for around 5-year lives. But after 25 years, there is a good chance that another 25 years for their tour is on-course.
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  • Encore
    Our debate panelists answer reader's questions about the possibility of complex life beyond Earth.
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  • Bacteria: Survival in Siberia
    While Mars experts have gathered evidence of ice on Mars for some time, results in May from the Odyssey spacecraft showed large amounts of subsurface ice. The concept of suspended animation supports the plots of dozens of science fiction books and movies.
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