dark star

American  

noun

Astronomy.

1. an invisible member of a binary or multiple star system.

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dark star British  

noun

1. an invisible star known to exist only from observation of its radio, infrared, or other spectrum or of its gravitational effect, such as an invisible component of a binary or multiple star

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Example Sentences

This could be the outcome of a merger, where a dark matter halo hosting a dark star merges with a galaxy.

From Science Daily • Oct. 14, 2025

When its dark matter power source gives out, a dark star would quickly collapse into a 1-million-solar-mass black hole—a perfect large seed ready to be adopted by a nearby protogalaxy.

From Science Magazine • Aug. 22, 2023

Finding a dark star would not only provide a new look into the early formation of the universe, Sandick says, but would also be a unique opportunity to directly observe dark matter interactions.

From Scientific American • Jul. 20, 2023

That brightness is my worth — the light of possibility filling the space where the dark star of my uterus had been.

From Salon • Oct. 13, 2022

For Digges and Benedetti, even though they were Copernicans, from a vast distance the Earth, which received light but did not transmit it, would become a dark star.

From "The Invention of Science" by David Wootton