NASA Wants to Float Microscopic 'Tracers' on Sunlight to Map the Edge of Space
Illustrative image The atmospheric is a dynamic place, and just how well we understand that dynamism depends on what part of the atmosphere it is. Low altitudes can be reached by traditional balloons, with full suites of sensing equipment. Higher reaches are the domain of satellites, with their zippy orbits allowing them to travel throug…
Source：Universe Today
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