Spiky Probe on NASA Mars Lander Raises Vapor Quandary

(PhysOrg.com) -- A fork-like conductivity probe has sensed humidity rising and falling beside NASA's Phoenix Mars Lander, but when stuck into the ground, its measurements so far indicate soil that is thoroughly and perplexingly ...

Cassini Images Ring Arcs Among Saturn's Moons

(PhysOrg.com) -- NASA's Cassini spacecraft has detected a faint, partial ring orbiting with one small moon of Saturn, and has confirmed the presence of another partial ring orbiting with a second moon. This is further evidence ...

Study: Behavior of Online Reviewers Affects Their Credibility

(PhysOrg.com) -- Consumers increasingly rely on recommendations in online forums, such as Amazon.com and Angieslist.com, when deciding which products and services to buy. But, in most cases, they've never met the posters ...

Dental fillings without gaps

Tooth cavities are usually closed with plastic fillings. However, the initially soft plastic shrinks as it hardens. The tension can cause gaps to appear between the tooth and the filling, encouraging more caries to form. ...

Tracking the reasons many girls avoid science and math

Most parents and many teachers believe that if middle-school and high-school girls show no interest in science or math, there's little anyone can do about it. New research by a team that includes vocational psychologists ...

Lightweight and long-legged males go the distance for sex

Finding a mate can take considerable legwork as recently illustrated by the flightless and nocturnal Cook Strait giant weta Deinacrida rugosa. This cricket relative is found in New Zealand and is one of the world's heaviest ...

Old sheep raising the baaa

Populations of wild animals face the challenge of surviving in a changing climate. Researchers at Imperial College London and Université Claude Bernard Lyon have shown how a sheep population on a remote island off the west ...

StellarWindow turns your laptop into a virtual planetarium

If you enjoy looking at the stars, but get a little impatient trying to figure out which way to hold your star map to identify the constellations, a new software program may make things easier. Called StellarWindow, the program ...

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