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Space Exploration
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jpa's user avatar
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jpa
  • Member for 8 years, 10 months
  • Last seen this week
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Top posts
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43
Why is the aperture door of the Hubble Space Telescope so weirdly shaped?
Apr 25
41
When was Newton "not good enough" for spaceflight; first use and first absolute requirement for relativistic corrections?
Dec 9, 2019
29
Why is it most efficient to change orbit inclination while crossing the equator?
Jul 21, 2020
29
Why doesn't NASA send Voyagers anymore?
Dec 15, 2018
16
Has any piston machine been used on a space mission?
Jan 24, 2022
12
This image of the Space Shuttle is truly beautiful, but is it real?
Sep 17, 2018
9
Is there an anomalous variation of distance between Earth-Moon during a lunar eclipse?
Nov 10, 2023
7
Could an electromagnet be used to raise the apogee of a satellite orbiting Earth?
Dec 2, 2021
6
Could the James Webb Resolve Earth?
Dec 1, 2022
6
Could we use a narrow paradigm, say laser, to get info faster from New Horizons? (With a moon base.)
Jan 3, 2019
Top network posts
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96
Why don't we use weights to store energy?
52
A planet you can take off from, but never land back
52
How do you know you have reached North or South Pole without GPS?
51
What are the benefits of tracking solved bugs?
50
If I sliced the universe in half, would the slice go through a star?