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Astronomy Conference 2026
Astronomy Conference 2026
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Back to comments
What was Edwin Hubble’s discovery about galaxy recession and redshift?
General Discussion
Zoe Barnes
8 Replies
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April 12, 2019 08:32 AM
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Zebula Murphy
Moderator
Hubble found that galaxy redshift increases with distance (universe expansion).
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June 27, 2019 12:07 PM
Zoe Barnes
The Hubble constant quantifies the rate of cosmic expansion.
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June 27, 2019 12:09 PM
Zoe Barnes
I’d like to plant a dark-sky preserve near my property to reduce light pollution.
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July 25, 2020 01:18 PM
Zoe Barnes
Parallax requires accurate baseline measurements and stable optics.
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July 11, 2025 12:48 PM
AR
Arman Rayez
We use Gaia DR3 data for precise parallax distances to millions of stars.
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July 11, 2025 12:49 PM
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