Phoenix probe lands on Mars (Update 4)

NASA's Phoenix spacecraft landed in the northern polar region of Mars Sunday to begin three months of examining a site chosen for its likelihood of having frozen water within reach of the lander's robotic arm.

Interactive Web sites draw minds, shape public perception

The interactive look and feel of a corporate website could help shape positive perceptions about the organization if the site includes a likeable design and features that engage the target audience, especially job seekers, ...

Big quakes spark jolts worldwide

Until 1992, when California’s magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at distant locations. Now, ...