The many faces of #saturn tonight from my garden. #Astronomy #Dunedinnz #astrophotography #planets pic.twitter.com/EKINRdsR2n
— Ian Griffin (@iangriffin) May 13, 2017
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Kepler’s first two laws of planetary motion describe the shape of a planet’s orbit and allow us to calculate the speed of its motion at any ...
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If we sum up the contributions from all parts of the electromagnetic spectrum, we obtain the total energy emitted by a blackbody. What we us...
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