Forming Ancient Stars
One of the big mysteries in astrophysics is the formation of the first stars. This simulation presents one possible formation mechanism for ancient stars.
Finding dark galaxies from their tidal imprints
The current hierarchical theory for galaxy formation — in which larger galaxies are built up from smaller building blocks and dark matter dominates — is well studied and reasonably well accepted. The book is still far from closed, however.
H.E.S.S. constraints on Dark Matter annihilations towards the Sculptor and Carina Dwarf Galaxies
While we look for signals of dark matter on Earth, scientists also keenly search the sky for indirect evidence. The basic idea is that occasionally dark matter particles will smash into each other, releasing particles that telescopes might detect.