These iPhone apps are sure to keep the kids busy (while they learn) as they prepare for the new school year.

Buzz Aldrin, the second man to walk on the moon, Mars remains a "wonderful objective" for humanity. Be sure to listen to his comments at the 53:26 mark about an "unusual structure" on Phobos.

Impressed and alarmed by advances in artificial intelligence, computer scientists are debating whether there should be limits on research that might lead to loss of human control over computer-based systems that carry a growing share of society's workload

The north pole of the Earths spin axis now points close to the star Polaris on the celestial sphere; just where it points is called the Celestial North Pole, or CNP.

President Obama launched a competition Friday for $4.35 billion in federal education funds, urging states to ease restrictions on charter schools, link teacher pay to student achievement and adopt common national academic standards to be eligible for $$

NASA's Hubble Space Telescope is offering a glimpse of atmospheric debris from an object that plunged into Jupiter in a rare collision with the planet

An amateur stargazer in Australia spotted an Earth-sized gash on Jupiter, possibly caused by a collision with a comet, NASA scientists say. Using an infrared telescope on Hawaii, NASA scientists found evidence that Jupiter was apparently struck

Important to watch

Paleoethnobotanist David Lentz of the University of Cincinnati has concluded that not only did the Maya people practice forest management, but when they abandoned their forest conservation practices it was to the detriment of the entire Maya culture

Researchers at the University of East Anglia and a hospital in Norwich, eastern England are trying to find out whether chocolate can cut the risk of heart disease and need 40 women to step forward and help.