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Astronomy
Hartmut Braun's user avatar
Hartmut Braun's user avatar
Hartmut Braun's user avatar
Hartmut Braun
  • Member for 5 years, 8 months
  • Last seen more than 1 year ago
  • München, Deutschland
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40
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11
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40
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1
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11
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8
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33
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7
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3
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33
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6
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22
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6
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2
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22
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Top posts
40
Did I see a supernova explosion?
Sep 11, 2020
5
Is it suspicious that gravitational waves propagate at the speed of light?
Jun 10, 2021
4
Could we make ourselves detectable for aliens with JWST-like technology?
Jun 6, 2022
3
Is the turn-off point of the main sequence the same as the terminal-age main sequence?
Nov 25, 2019
3
Why is the main sequence often called 'zero age' main sequence?
Nov 26, 2019
2
Why do people say travelling at the speed of light or faster is impossible?
Mar 27, 2021
1
Is there a way to calculate the mass of of a stellar remnant given the initial mass of the star?
Mar 17, 2021
1
how long a light year on earth will seem
Aug 9, 2020
1
Puzzling quotes from astronauts about earth size
Oct 28, 2018
Top network posts
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17
How can ultrasound hurt human ears if it is above audible range?
14
Is there a correlation between vaccination levels and new COVID-19 cases?
10
How many types of inertia are there?
8
Can Access Fault Exceptions of the MC68040 caused by internal access faults occur in normal situations?
7
How does the electron understand that it being observed in the double slit experiment?