News tagged with observations

Radar images of asteroid 2005 WK4

(Phys.org) —A collage of radar images of near-Earth asteroid 2005 WK4 was generated by NASA scientists using the 230-foot (70-meter) Deep Space Network antenna at Goldstone, Calif., on Aug. 8, 2013.

Aug 22, 2013
5 / 5 (2) 1 | with audio podcast

On the edge of Tyagaraja

Here's a rather interesting view from orbit around the innermost planet: Mercury's Tyagaraja crater, the interior of which is seen here in an oblique-angled image acquired by the MESSENGER spacecraft on November ...

Aug 20, 2013
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Scientists relate urban population to air pollution

(Phys.org) —Live in a large city like New York, London, Beijing or Mumbai, and you are likely exposed to more air pollution than people in smaller cities in surrounding areas. But exactly how a city's pollution ...

Aug 19, 2013
4.5 / 5 (2) 1 | with audio podcast

Cells move as concentration shifts

What do wound healing, cancer metastasis, and bacteria colonies have in common? They all involve the collective displacement of biological cells. New research sheds some new light on the physical mechanisms provoking the ...

Jul 29, 2013
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