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NASA's Mars Exploration Rover Opportunity used its rock abrasion tool on a rock informally named "Gagarin" during the 401st and 402nd Martian days, or sols, of the rover's work on Mars (March 10 and 11, 2005).

Scientists at the Fermi National Accelerator Laboratory in Illinois said this week a "bump" in their data may be evidence of a new subatomic particle — one that could change our understanding of modern physics.

Researchers believe that a twisting strand of protein, known as the V3 loop, is an attractive vaccine target because immune system antibodies aimed at the loop may offer protection against multiple genetic subtypes of HIV-1, the virus that causes AIDS.

This shipping container was discovered upside down on the seafloor by researchers in June 2004, four months after it was lost at sea.

This fall will see the adoption and increased widespread use of new technologies that will alter the way enterprise computing is accomplished. Some of these technologies come from the consumer technology side of the business, some are grown from labs, and some are the result of integrating existing technologies. Check out our top five picks for technologies that will change the game in enterprise computing.

The image shows Curiosity on a tilt table in the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory, Pasadena, California.

This view of Earth comes from NASA's Moderate Resolution Imaging Spectroradiometer aboard the Terra satellite.

In a talk at the Harvard Museum of Natural History, Loeb Associate Professor of the Natural Sciences Peter Girguis traced the rise of modern oceanography to the voyage of the Challenger in the 1870s. The sailing ship had just six scientists among its 200 crew members and 21 officers. Along the way, the scientists discovered more than 4,700 new species and found life as deep as 8,000 meters.