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Astronomy
Mark Olson's user avatar
Mark Olson's user avatar
Mark Olson's user avatar
Mark Olson
  • Member for 5 years
  • Last seen more than a month 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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108
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Top posts
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All Questions Answers
Score Newest
answer
73
Why are we building larger land-based telescopes instead of launching larger ones into space?
Jun 12, 2018
answer
41
Simple experimental evidence that Earth revolves around Sun
Jul 9, 2018
answer
39
What would happen if someone had a telescope and watched Betelgeuse when it goes supernova?
Dec 8, 2018
answer
24
What will happen to the shape of a galaxy when a super massive black hole lying in its center dies(evaporates out)?
May 29, 2018
answer
22
How do we know if an object is redshifted?
Feb 7, 2019
answer
17
Why black holes are extremely cold?
May 28, 2018
answer
15
Whats the probability of a hazardous impact for human life on Mars?
Jul 6, 2018
answer
15
If gravity precedes the formation of a solar system, where did the mass come from that caused the gravity?
Apr 23, 2019
answer
14
Hypothetically, would we be able to see the moon from Saturn's North Pole?
May 28, 2018
answer
13
What created the big bang's singularity?
Jul 6, 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?
119
How far did Gandalf and the Balrog drop from the bridge in Moria?
107
My time machine needs to know when it is
103
Was Tolkien good at his day job?

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