End of an Era
I wrote about the end of the space shuttle program for Science News for Kids. Here’s the whole story.
Physics
The Dark Side of the Universe
I wrote this feature about dark matter and dark energy for Science News for Kids. Read the whole story here. Photo credit: NASA, ESA, and Dan Coe
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Planets with screwy orbits
Ever since astronomers started finding planets orbiting other stars, they have been learning just how rich and peculiar the cosmos can be. Recent observations. add yet another head-scratcher: giant gas planets that circle their stars on wildly tilted orbits or go around the wrong way altogether. Read all about it in this article from Discover, which
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8 Ways Scientists Look at—But Don’t Yet See—Dark Matter
The hunt for dark matter is on, and scientists are looking for the mysterious stuff on Earth and in space. I wrote about recent efforts to detect dark matter for the July-August 2009 issue of Discover magazine. Read the article here.
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A Shaking Star Soon Shares Its Secrets
Just as earthquakes help scientists learn about the interior of our planet, the way a star’s surface oscillates yields clues to its internal structure and other key characteristics. Researchers with the Kepler Asteroseismic Investigation are putting that concept to work on a grand scale, monitoring the surface vibrations of thousands of stars to learn their ages,
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