Science
Are primordial black holes really giant gravitinos? – Space.com
It’s a long shot of an idea, but when it comes to the early universe, it’s the best we’ve got.

Paul M. Sutter
is an astrophysicist atSUNY
Stony Brook and the Flatiron Institute, host ofAsk a Spaceman
andSpace Radio
, and author of How to Die in Space
. He contributed this article to Space.com’sExpert Voices: Opinions and Insights
.
Astronomers don’t understand the origins of the biggest black holes
in the universe. These black holes appear so early in the cosmological record that we might have to invoke new physics to explain their appearance.
New research proposes an intriguing origin…
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