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Astronomy
David McKee's user avatar
David McKee's user avatar
David McKee's user avatar
David McKee
  • Member for 2 years, 10 months
  • Last seen more than a month ago
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question
7
Why are lunar craters preferentially north-south aligned?
Jan 23
answer
5
How often does the configuration of the Trappist-1 system repeat
Aug 26, 2022
answer
4
Is saying that what we see of an object 1 light-year away happened 1 year "ago" in any a way useful view of the universe?
Oct 28, 2021
answer
-3
What was the definition of a planet before August 24, 2006?
Nov 2, 2023
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59
What was the first game to show toilets?
22
Why do people experience weightlessness on the way up in parabolic flight?
15
If A cents can be paid with B coins then prove that B dollars can be paid with A coins
12
First fictional lab-created plague
9
What livestock did hobbits raise?