Dec 07 Just Ask: What Would a Supersized Atom Look Like? 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
Nov 30 Just Ask: What Makes Volcanoes Erupt? 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… Continue reading
Nov 24 Universe is Expanding, But Not All of It 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
Nov 15 Harvard Astrophysicist Answers: What Is a Supernova? 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… Continue reading