Space Exploration
Mark Olson's user avatar
Mark Olson's user avatar
Mark Olson's user avatar
Mark Olson
  • Member for 2 years, 5 months
  • Last seen more than 2 years ago
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About

I'm a retired chemical physicist-turned software developer and manager and a science fiction and history enthusiast living outside Boston.

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Top tags
11
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1
Posts
33
Posts %
11
Score
1
Posts
33
Posts %
10
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Posts
33
Posts %
3
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1
Posts
33
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Top posts
All Questions Answers
Score Newest
answer
11
A gedanken on being able to navigate back to Earth
Jan 5, 2019
answer
10
When was the topography data for the Apollo 17 landing site gathered?
Sep 8, 2018
answer
3
"grease" like substance in Space
Jul 2, 2018
Top network posts
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293
What did Frodo and Sam eat when they crossed Mordor on foot?
121
What's the big deal about the Nazgûl losing their horses?
120
How far did Gandalf and the Balrog drop from the bridge in Moria?
108
My time machine needs to know when it is
103
Was Tolkien good at his day job?

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