Dark matter asteroids (if they exist) may cause solar flares
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Chris Lee
47 Tuc
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the Hubble Space Telescope
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Summary
It turns out that the inside of a star might just be that place.Most proposals for dark matter candidates use the simplest possible extension to the Standard Model. Based on what we know about the Universe and how galaxies form, dark matter asteroids have to be moving very fast."Fast," in this case, means "faster than the speed of sound within a star." So when an asteroid hits a star, it produces a cylindrically shaped acoustic shock wave. In other words, there is a burst of light that is definitely visible to our observational tools.The researchers used the estimated dark matter density of a globular cluster called 47 Tuc to calculate how often flares induced by dark asteroids would be visible to the Hubble Space Telescope (if it had the right filters in place).
As said here by Chris Lee