16/09/2010

Cosmic ice sculptures: Dust pillars in the Carina Nebula

Enjoying a frozen treat on a hot summer day can leave a sticky mess as it melts in the Sun and deforms. In the cold vacuum of space, there is no edible ice cream, but there is radiation from massive stars that is carving ...

Sex differences determined not simply by gender

(PhysOrg.com) -- Researchers at Imperial College London have uncovered an inherent difference in the way the genes of males or females can be "switched off" or silenced in the body's developing immune system. This finding ...

Twitter helps smaller firms level the information playing field

Smaller companies that don't get much news coverage can bridge the information gap with investors by tweeting, according to a study by Greg Miller, Hal White and Beth Blankespoor of the University of Michigan Ross School ...

Strong robotic arm extends from next Mars rover

(PhysOrg.com) -- Tests underway in a JPL clean room will refine the precision of movements by a robotic arm that can reach more than 7 feet in front of NASA's Curiosity Mars rover.

Five things about NASA's Mars Curiosity rover

(PhysOrg.com) -- Mars Science Laboratory, aka Curiosity, is part of NASA's Mars Exploration Program, a long-term program of robotic exploration of the Red Planet. The mission is scheduled to launch from Cape Canaveral, Fla., ...

Water around massive young stars

Water is critical to human life, but also plays an important role in the life of stars and their planetary systems. As a gas, water helps to cool collapsing clouds of interstellar material so that they can form new stars.

Scientists decode genomes of sexually precocious fruit flies

(PhysOrg.com) -- UC Irvine researchers have deciphered how lowly fruit flies bred to rapidly develop and reproduce actually evolve over time. The findings, reported in the Sept. 15 online issue of Nature, contradict the long-held ...

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