https://www.space.com/13499-nasa-fermi-space-telescope-pulsar-discoveries.html
NASA Telescope's Big Haul: 'Invisible' Stars & Amazingly Bright Pulsar | Space
Nov 3, 2011 - In two new studies, researchers used NASA's Fermi Gamma-Ray Space Telescope to find nine new gamma-ray pulsars, as well as the brightest and youngest...
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https://www.livescience.com/black-holes-may-be-swallowing-invisible-matter-that-slows-the-movement-of-stars
Black holes may be swallowing invisible matter that slows the movement of stars | Live Science
Mar 24, 2023 - Scientists watched as two stars slowed in their orbits around black holes, concluding it was the result of "drag" generated by dark matter.
https://futurism.com/the-byte/growing-suspicion-universe-filled-invisible-ghost-stars
There's Growing Suspicion That The Universe Is Filled With Invisible "Ghost Stars"
There's a growing pile of evidence that dark matter bosons can clump together and form "ghost stars" that are totally invisible to our eyes and telescopes.
https://futurism.com/boson-stars-black-holes-invisible-stars
Physicists Say Universe Could Be Filled With Invisible "Boson Stars"
Astrophysicists investigated if "boson stars," theoretical objects made out of boson particles, could account for the existence of some black holes.
could befilled withphysicistssayuniverse