Science Questions

  • December 7, 2010   BY Jenny Marder 

    If you expanded an atom to the size of a baseball, what would it look like? And how would the inside look if you sliced it open? The nucleus is the atom’s central core and contains more than 99.9 percent … Continue reading

  • November 30, 2010   BY Jenny Marder  

    It’s time for our weekly Just Ask feature, where the experts tackle your questions on science and technology. John Eichelberger, a volcano expert with the U.S. Geological Survey, answers the question, “Why Does the Earth Have Volcanoes, and What Makes … Continue reading

  • November 24, 2010   BY Jenny Marder  

    Regarding the expanding universe which recent observations shows is accelerating: I understand that not everything is expanding, just the space between galaxies. Is that correct? If so, why? – Bill Ellena It’s true — not everything is expanding. The earth … Continue reading

  • November 15, 2010   BY Jenny Marder  

    Robert Kirshner, an astrophysicist from the Harvard-Smithsonian Center for Astrophysics, answers the question, “What is a supernova?” A supernova explosion is something where you see a star that you hadn’t seen before suddenly turn billions of times brighter than it … Continue reading

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