Dancing in the Dark
Confused by the hubbub about the “galaxy lacking dark matter”? Fear no more! In today’s Astrobite, we’ll examine some hot takes by the scientific community.
A Little Less in the Dark
A dwarf galaxy in Cetus appears to have a serious lack of dark matter.
Why dark matter (probably) can’t explain the 21cm Cosmic Dawn signal
Less than a month after the first detection of a cosmic 21cm signal by EDGES was published, and hopes are already dwindling for the models of dark matter that were proposed to explain the unexpected signal.
First Detection of the 21cm Cosmic Dawn Signal
Radio astronomers detect the first signature of a global 21cm signal with some interesting implications for dark matter.
How much does the Milky… weigh?
How do we measure the mass of our own galaxy? Today’s authors use simulations to compare (and improve) several methods.
How fast is dark matter?
Can observations of stars help to determine the local dark matter velocity?