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Fraser
2012-Jun-15, 03:20 PM
The physical force of sunlight on a moving asteroid has been measured by NASA scientists, providing information on how to better plot these Earth-passing worlds’ future paths. (...)Read the rest of Astronomers Measure Sunlight’s Shove (433 words) © Jason Major for Universe Today, 2012. | Permalink | No comment | Post tags: 1999 RQ36, arecibo, [...]

More... (http://www.universetoday.com/95837/astronomers-measure-sunlights-shove/)

profloater
2012-Jun-16, 10:19 AM
The physical force of sunlight on a moving asteroid has been measured by NASA scientists, providing information on how to better plot these Earth-passing worlds’ future paths. (...)Read the rest of Astronomers Measure Sunlight’s Shove (433 words) © Jason Major for Universe Today, 2012. | Permalink | No comment | Post tags: 1999 RQ36, arecibo, [...]

More... (http://www.universetoday.com/95837/astronomers-measure-sunlights-shove/) It says 1/2 ounce on 500m diameter, I make that ... about 0.6 microPascals, anyone care to check?