Spur and gap features seen in Milky Way’s GD-1 stellar stream could be caused by a self-interacting dark matter subhalo. New ...

Visualizations of well-known stellar streams in the Milky Way can be found here. Astronomers discovered that the spur and gap features of the GD-1 stellar stream cannot be easily attributed to the ...

one of the most well-studied streams within the galactic halo of the Milky Way, known for its long, thin structure, and unusual spur and gap features. The team of researchers, led by Hai-Bo Yu at ...