Grassland Videos

• Aviation
  Satellites
  Space Probes
  Space Exploration
  Space Station
  NASA
   
  

  Mechanical Engineering Students Develop High-Altitude Reconnaissance Airships

  On a shoestring, and with off-the-shelf components, students are designing prototypes of robotic blimp that could one day be used by the Pentagon. Cheaper than spy satellites, blimps can hover in ... > more
• Insects (and Butterflies)
  Endangered Plants
  Cloning
  Nature
  Endangered Animals
  Birds
   
  

  Insect Ecologist Spearheads Creation of Oases for Endangered Butterflies

  Waystations for monarch butterflies are sprouting up around the country. With milkweed plants and flowers such as zinnias that produce lots of nectar, these gardens will provide oases for the ... > more
• Soil Types
  Organic
  Fungus
  Hazardous Waste
  Landslides
  Endangered Plants
   
  

  Soil Chemists Plant Ferns to Soak Up Backyard Poisons

  Planting ferns can be a cheaper, greener way to soak up poisons such as arsenic from the soil. Ferns absorb arsenic through their roots and store it in their leaves, which can then be cut off. ... > more
• Weather
  Severe Weather
  Wildfires
  Natural Disasters
  Elder Care
  Tsunamis
   
  

  Meteorologists Can Now Issue Precise Local Excessive-Heat Warnings

  Heat kills more people than tornadoes, hurricanes, lightning and flash floods -- combined. The National Weather Service now gives heat-wave warnings to better forecast local conditions for 16 ... > more

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