Dark matter might not be from around here ESA/Gaia/DPAC
Astronomers recently revealed that our galaxy, the Milky Way, devoured a so-called 鈥渟ausage鈥 galaxy about 10 billion years ago. Now it seems this sausage might make finding dark matter ever harder.
We can鈥檛 track dark matter directly because it is invisible and can pass straight through normal matter. But the location of dark matter appears to coincide with regular matter, so we can track its movements by looking to the stars.
Lina Necib at the California Institute of Technology and her colleagues used the biggest-ever map of stars and…
