Comet NEOWISE Over Lebanon Via NASA Https://ift.tt/2AEaEcc

Charon, moon of Pluto, observed by NASA's New Horizons probe just before closest approach on this day in 2015. (It flew within 12,500 km of Pluto and as close as 27,000 km to Charon.)

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Astronaut Scott Kelly captures a Earth/Moon/Venus/Jupiter alignment from the ISS

An assortment of computer models rendered employing variations of the Lorenz equation.

𝖒𝖔𝖔𝖓𝖘 𝖎

So much of fluid dynamics comes down to finding the right way to observe a flow.  (Image credit: Expedition 59 Crew; via NASA Earth Observatory)

Moon (Jun. 23, 2020)

An total solar eclipse, 1905, observed from Palma, Balearic Islands, Spain, illustrated by Major Baden-Powell.