"Dark Matter Winners and Losers in the Aftermath of LIGO" at Forbes.com
Astrophysicist Ethan Siegel (of "Starts with a Bang", a physics and astronomy feature of Forbes.com) discusses how LIGO's discoveries have strengthened some theories about the universe and weakened some others:
Dark Matter Winners and Losers in the Aftermath of LIGO
Merging Neutron Stars Deliver Deathblow To Dark Matter And Dark Energy Alternatives