Crosscut · 42 min
Understanding Black Holes
How did the universe's first black holes actually form, and why do these massive objects eventually erase every physical trace of their own violent pasts?
Black Holes or Black Hole Stars? Astronomers Spar Over Webb Telescope’s ‘Little Red Dots.’ × Cosmic Amnesia
Published 2026-09-19
0:00 / 41:54 · Narrator Sulafat/Charon/Vindemiatrix
In this episode
Quanta Magazine
Black Holes or Black Hole Stars? Astronomers Spar Over Webb Telescope’s ‘Little Red Dots.’
by Charlie Wood
The connection
When a telescope spots faint red dots in the early universe, it forces a question about how the first black holes formed. Writing just this week, Charlie Wood tracks a live debate among astronomers over whether these distant smudges are standard black holes or a strange hybrid known as a black hole star. While Wood looks at the chaotic birth of these objects, Richard Dyer approaches them from the opposite end of time. Published a few days later, Dyer’s essay reflects on how black holes eventually swallow their own violent histories, mirroring the irreversible flow of time. Something interesting emerges when reading them side by side: a sharp contrast between a messy cosmic dawn and a quiet, permanent amnesia.
Charlie Wood leaves you staring at a single pixel of red light, watching astronomers fight over the messy birth of a supermassive black hole. It is a chaotic origin story, full of swirling gas and colossal stars. But turn the page to Richard Dyer, and that hard-won history suddenly vanishes. Dyer looks at the moments right after two black holes violently crash together. What jumps out reading Dyer immediately after Wood is the sharp contrast in what survives. Wood’s astronomers are desperately trying to pull a creation story out of a tiny speck in the early universe. Dyer points out that the physics of a black hole is built to erase that exact kind of detail. After a merger, a black hole rings like a struck bell, then settles into total silence—wiping away all the evidence of its violent past. Read alongside Wood, Dyer’s essay makes the fierce debate over those little red dots feel almost poignant. Scientists are fighting to uncover a turbulent record that the universe itself eventually scrubs clean.
Those glowing red dots at the dawn of the universe leave behind a messy debate over how things begin. Astronomers are still fighting to figure out how these heavy giants first ignited. Yet that frantic creation sits in cold contrast with the dark silence a black hole eventually becomes, swallowing every trace of its own violent past. What lingers is a paradox about memory. If an object is destined to destroy every single clue about how it was made, is it ever truly possible to know its beginning?