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A primordial black hole flying past, and briefly “wobbling” the orbit of Mars with the sun in the background.
An artist’s illustration depicts a primordial black hole (at left) flying past and briefly “wobbling” the orbit of Mars (right).

Spotlight: Sep 17, 2024

Physicists have proposed a way to investigate whether tiny black holes make up the universe’s dark matter: One should zoom through our solar system at least once per decade, making Mars’ orbit wobble in a way we could detect from Earth.

Sep 17, 2024

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Image: Benjamin Lehmann, using SpaceEngine @ Cosmographic Software LLC.