The Search for Black Hole Teenagers
The discovery of medium-sized black holes allow us to trace the history of the giant black holes in the center of galaxies.
Type Ia Supernovae Could Use Some More Color
Including the color of the local environments of Type Ia supernovae in our analyses could help us use them as more precise cosmological tools.
Looking Deeper at Milky Way Satellite Dwarf Galaxy Candidates
Four new Milky Way dwarf satellite candidates were discovered in 2015 using the Dark Energy Survey. Fainter imaging data are used to further investigate their exact nature.
Reading the Epic of Reionization
Observations of dim galaxies lensed by foreground clusters provides a way of measuring the progression of reionization.
Can we a-void the Hubble tension with local voids?
Cosmologists revisit an idea for addressing the Hubble tension: that a local void is messing with our measurements along the cosmic distance ladder.
Satellites of satellites should exist. Let’s go look for them.
Today’s paper makes predictions for the yet-to-be-observed dwarf galaxy population around Andromeda’s satellite galaxy, M33. It provides scientific justification for a future mission with WFIRST.