What cosmic news you've heard was the most shocking to you? (in a pleasant way)

Jul 4, 2021
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News about the confirmation of the 'acceleration' of the expansion of the Universe. Which of course led to the discovery of dark energy. Completely unexpected. A foundational paradigm shift
"Hot off the presses". Stellarwest's post, Friday, 7-9-'21, that the supernova of Betelgeuse may be visible on Earth within ~5+ years. The analysis and program code are delineated. Well worth the read and pondering, and for the "thru the bits types" a nice weekend project to tinker with.
Jul 27, 2021
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Starlink launches: delights from gazing ‘satellite trains’ and strong worries of the impact on debris (half of collisions are assigned to them).

Pushing a scenario.

“Imperious Starlink flashes forth / Their edict ‘to begin it’: / In gentler tones Stargazers hope ‘There will be nonsense in it!’ / While The rest speculates the sequels/ Not more than once a minute.”