Top 3 posts for you on Google+ this week

Hi ray! Here are the top 3 posts for you on Google+ this week.
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sunidhi kapoor 149 shares View or comment on this post » Carmilita Zotomayor-Riveral A promise I intend to keep  -- 230 shares View or comment on this post » Astronomy Picture of the Day (APoD) . GRAIL Maps the Moon's Gravity Image Credit & Copyright: +NASA, JPL-Caltech, MIT, GSFC http://apod.nasa.gov/apod/ap130319.html How did the Moon form? To help find out, NASA launched the twin Gravity Recovery and Interior Laboratory (GRAIL) satellites in 2011 to orbit and map the Moon's surface gravity in unprecedented detail. Pictured above is a resulting GRAIL gravity map, with regions of slightly lighter gravity shown in blue and regions of slightly stronger gravity shown in red. Analysis of GRAIL ... ...and 18 more photos. 63 shares View or comment on this post »
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