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Sabine | Latest Data Challenges 25 Years of Cosmology

There’s something crazy going on in the world of physics right now.

2025-03-24 15:00:00 - Sabine Hossenfelder

According to new data from the Dark Energy Spectroscopic Instrument (DESI), the cosmological constant might not actually be constant, rather, it is decreasing and had a “phantom crossing”.


What does that mean?


I have a quick summary of what's new.


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