Nov 15th, 2008 · This week the U.S. Supreme Court gave the Navy the OK to use sonar off the coast of California — environmentalists complain the sounds confuse whales. But it turns out the planet's oceans are actually getting louder anyway. Geochemist Peter Brewer at the Monterey Bay Aquarium Research Institute talks about a recent study finding that global warming is changing the way sound travels underwater.
Nov 14th, 2008 · Two independent research teams have detected exoplanets through unconventional methods — by taking snapshots using visible and infrared light. Astronomer James Graham discusses the findings — including what the exoplanets might tell us about the formation of planets and solar systems.
Nov 14th, 2008 · Scientists have taken images of multiple planets orbiting a star other than our own sun. One extrasolar system reportedly has three planets; another star, 25 light-years away from Earth, has one planet in its orbit.
Oct 31st, 2008 · The MESSENGER probe captured images of never-before-seen aspects of the closest planet to the Sun during a recent flyby. Researcher Sean Soloman discusses the MESSENGER mission, which aims to be the first man-made object to orbit Mercury.
Oct 29th, 2008 · New images from Messenger are aiding scientists in understanding how volcanic eruptions helped shape this alien world. Some of the photos add to evidence suggesting that volcanoes have been very active on the planet.
Oct 14th, 2008 · In his new book, Hot, Flat, And Crowded, Thomas Friedman warns that our thirst for fossil fuels is polluting the planet, altering the climate, dragging down the economy and endangering national security. A green revolution, says Friedman, "is not about the whales"; it's a competitive necessity.
Oct 3rd, 2008 · SpaceX's flagship Falcon1 rocket has successfully launched from an island in the central Pacific, becoming the first privately-developed rocket to orbit the planet. NASA has already contracted SpaceX to begin private space flight missions to the International Space Station beginning in 2010.
Sep 25th, 2008 · It's hard to find rocks from the earliest days of the planet; the surface is constantly changing. But exposed bedrock on the eastern shore of the Hudson Bay in Quebec may be 4.3 billion years old.