Content Warning
My followers may have heard of the neutral hydrogen map of the Milky Way published by Jan Oort, Frank Kerr and Gart Westerhout in 1958.
The Oude Sterrewacht, once directed by Oort, is now part of the Leiden botanical garden, the Hortus Botanicus. It is currently hosting an interesting art and science exhibit, Planten en Planeten (Plants and Planets).
Some of my maps are part of that exhibit, comparing Oort's original map with the new Gaia maps.
And so inspiring this new image.
