NASA Connect Video containing six segments as described below. NASA Connect Segment involving students in a classroom activity that measures shadows and uses geometry to determine sizes of angles. NASA Connect Segment explaining questions about Erastothenes, the Earth's circumference, parallel lines, angle relationships, and a transversal. NASA Connect Segment featuring an online activity to show students how to design a planetary observer like the Mars Global Surveyor. NASA Connect Segment explaining surveying and how surveyors use geometry. NASA Connect Segment exploring how the Mars Global Surveyor works and how students survey Mars by using shadows, angles, and geometry. The video also explains how land formations are measured on Mars. NASA Connect Segment explaining how NASA scientists survey Mars with the Mars Global Surveyor. The video also explains aerobraking and how geometry influences this.

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