Paul M. Sutter is a research professor in astrophysics at SUNY Stony Brook University and the Flatiron Institute in New York City. He regularly appears on TV and podcasts, including 'Ask a Spaceman.' He is the author of two books, 'Your Place in the Universe' and 'How to Die in Space,' and is a regular contributor to Space.
The worlds of dark matter and regular matter connect only through their gravity — and astronomers hope that giant cavities in space known as"superbubbles" might hold the key to understanding that connection.
Now, astronomers at the University of Tartu in Estonia may have found a clever connection point: superbubbles. Related: The universe may be dominated by particles that break causality and move faster than light, new paper suggests The researchers found that the presence of superbubbles can affect the overall rotation rate of stars and galaxies by about 4% per billion years. Over the lifetime of a galaxy, that can mean sapping about half of the total rotational energy of a galaxy, greatly affecting the orbits of both stars and dark matter.
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