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.
Sep 19th, 2008 · Science Friday travels to the home base of NASA's Phoenix Mars Lander in Tuscon, Ariz., to discuss the continuing exploration of Mars. Scientists explain how various robots, both on the surface and in orbit, are mapping and cataloging the Red Planet.
Aug 15th, 2008 · Scientists studying many different parts of the planet's ecosystems are warning that Earth may be on the verge of a sixth major mass extinction event.
Aug 8th, 2008 · Researchers say that if the conditions had been slightly different for our solar system, planets could have careened into the sun or been expelled into deep space. Also: A volunteer astronomer spots a strange gaseous object some are calling a "cosmic ghost."