- "So a black hole can form with a mass less than about 50 or more than 120 times that of the sun, but no known mechanism allows a dying star to become a black hole with a mass in the gap between. Yet the gravitational waves spotted by LIGO and Virgo revealed black holes weighing 66 and 85 solar masses."
- “look for an explanation at the tiniest scale—particle physics beyond the Standard Model.”
* “hidden photons"
* axions
- "Another of the team’s proposals hinges not on extra particles, but on extra spatial dimensions."
- "A third possibility, modified gravity, would overturn an assumption held by both Isaac Newton and Albert Einstein. The inherent strength of gravity, instead of being constant throughout the entire universe, could depend on the cosmic environment."
-“It’s tantalizing that through simulating the evolution of these early stars, you can learn about the tiniest particles that have been proposed,” Croon says. “We’re using very large black holes to study very small particles, and I just think that is fascinating.”