The Achilles Heel by Raymond Z. Gallun:
Science Fiction Inventions, Technology and Ideas
"Southern wasn't going to take any chances on getting caught - not he! So he forced the meek little astronomer to walk ahead of him into [the] inferno."
("The Achilles Heel" by Raymond Z. Gallun)
Clever Gallun story still satisfies after all these years. A space bandit arrives unexpectedly on an observatory on Mercury and forces an elderly astronomer to trek across the blasted ash of the closest planet to the sun! How can the tables be turned?
Found it in this copy of Amazing Stories, 1940. Select
Darkened Glass Face Plate
The use of darkened glass on the face plate of a space suit helmet to protect the wearer from solar radiation.
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