In my January 23, 2026, “The Universe” column, I wrote about some of the biggest explosions to happen in the universe: exploding stars, hiccupping magnetars, stellar disruptions and colliding black …
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Supermassive
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Future Tech
Supermassive black hole Sagittarius A* may once have been 10,000 times brighter than today
13 January 2026 2 read minutes Add us on GoogleAdd SciAm The galaxy’s central black hole could have looked surprisingly different a few hundred years ago New research shows that …
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7 January 2026 4 read minutes Add us on GoogleAdd SciAm Strange, wobbling black hole jets may shape entire galaxies A stumbling jet from a massive, fiery black hole is …