Comments on: Hubble data shows expansion of supernova remnant https://behindtheblack.com/behind-the-black/points-of-information/hubble-data-shows-expansion-of-supernova-remnant/ Fri, 29 Sep 2023 19:58:27 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/hubble-data-shows-expansion-of-supernova-remnant/#comment-1428972 Fri, 29 Sep 2023 19:58:27 +0000 https://behindtheblack.com/?p=98967#comment-1428972 In reply to markedup2.

markedup2: Your question was actually answered years ago by Hubble. In looking at many different planetary nebula, supernovae remnants, and clouds it has detected motion and change and made many movies of that change.

Do a search on BtB for “Eta Carina” and “Crab Nebula” for two of the more famous examples of this work.

]]> By: markedup2 https://behindtheblack.com/behind-the-black/points-of-information/hubble-data-shows-expansion-of-supernova-remnant/#comment-1428952 Fri, 29 Sep 2023 18:31:14 +0000 https://behindtheblack.com/?p=98967#comment-1428952 That answer a long-standing question of mine: Can we actually see anything _changing_ out there or is all too far away and slow (in human terms)?

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