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2002

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  • The Physicsof Sandcastles

    July 11, 2002

    An upcoming shuttle mission will carry small columns of sand into space -- and will return with valuable lessons for earthquake engineers, farmers and physicists.

  • Auroras Underfoot

    July 8, 2002

    A group of Astronautswill never forget the day they flew right through a cloud of auroras while onboard the Space ShuttleAtlantis.

  • The Distant Sun

    July 2, 2002

    Earth reaches its greatest distance from the Sun (aphelion) during the 4th of July holiday weekend. Curiously, our planet is globally warmer when it is farther from the Sun.

  • Summer Moon Illusion

    June 24, 2002

    Summer is a good time to spot giant moons near the horizon. It's the season for the mysterious moon illusion.

  • Solstice Shadows

    June 21, 2002

    Shaquille O'Neal's stubby shadow is proof that our planet is tipped on its side--and summer has arrived.

  • Curious Skeletons

    June 19, 2002

    Deep within the cells we're made of, squishy skeletons feel the effects of gravity ... and respond in unexpected ways.

  • Extraterrestrial Jupiter

    June 13, 2002

    Today astronomers announced the discovery of more than a dozen New Planetsorbiting distant stars. One of those planetary systems looks curiously like our own.

  • Astronaut Fingers

    June 12, 2002

    A device just delivered to the ISS will add something important to Space Stationresearch: the human touch.

  • Watch Out for Spaceships

    June 11, 2002

    This week is a good time to spot two spaceships flying over your backyard: the International Space Stationand the Space ShuttleEndeavour.

  • Shear Mystery

    June 7, 2002

    Some fluids have a mysterious property: one moment they're thick, the next they're thin. Physicists aim to find out why with the aid of an experiment in space.