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IFLScience on MSN4d
A Giant White Light Beam Cuts Through The Skies Over US Amid Aurora Storm
While photographing the auroras during a geomagnetic storm, Mike Lewinski caught sight of something extraordinary: a ...
esa.org6y
Resource of the Week: What is most accessible, light text on dark background or vice versa?
Abstract excerpt: “…black text on a white background (BW) and light blue on dark blue (B) pages received the highest ratings for readability […]; c) B pages received the highest ratings for the ...