Radio astronomers detect the first signature of a global 21cm signal with some interesting implications for dark matter.
How do we measure the mass of our own galaxy? Today’s authors use simulations to compare (and improve) several methods.
Can observations of stars help to determine the local dark matter velocity?
Today’s paper has implications for theories of dark matter and nearby pulsars.
Trying to find the most massive galaxy cluster in the night sky can be hard. Comparing predictions of these masses to observed clusters? Even harder. An insight into the world of Halo Mass Functions and their tail-ends.
In the study of structure formation in the universe, the ‘missing satellite galaxies’ problem is said to be almost solved. Is today’s paper the final nail in the coffin?