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Physics and Astronomy News Archive: February 2012

New Views Show Old NASA Mars Landers

Source: NASA/JPL Posted: 2/9/12

The NASA's Mars Reconnaissance Orbiter recordes a scene on Jan. 29, 2012, that includes the first color image from orbit showing the three-petal lander of NASA's Mars Exploration Rover Spirit mission.

Explained: Sigma

Source: MIT Posted: 2/9/12

How do you know when a new finding is significant? The sigma value can tell you — but watch out for dead fish.

'Watch the stars, and from them learn.
To the Master's honor all must turn,
Each in its track, without sound,
Forever tracing Newton's ground.'

Albert Einstein
(1879-1955)