For habitability, two stars are not better than one
Nothing is easy when you have two stars instead of one. Under the right circumstances, it can be especially hard to hold on to your atmosphere.
How irregular rotation can change a galaxy’s metal content
It’s difficult to tell how the individual stars of a galaxy rotate. What can we find out just from their metal content?
Three new pictures of the ancient Universe
Massive astronomy surveys reveal previously undiscovered structures. What can three new globular clusters tell us about the ancient Universe?
Additional Arguments that Aboriginal Australians Observed Variable Stars
Did Aboriginal Australians notice that Betelgeuse is a variable star? Today’s paper provides additional evidence that they did.
Our M-dwarf Models Just Aren’t Good Enough
We need to know the radii of M-dwarfs to study their exoplanets, and the models aren’t much help.