The Tip of the Red Giant Branch (TRGB) allows for another H0 measurement to enter the ring. Credit for “H0tTake” goes to the conference “Tensions between the Early and the Late Universe” hosted at the Kavli Institute for Theoretical Physics!
In light of the October 30 ruling on the Thirty Meter Telescope, a review of modern astronomy on Mauna Kea seems warranted. This post came out of the Astrobites Policy Committee, which focuses on science and the government.
What can the variable stars in the Magellanic Clouds tell us about how they evolve?
How can Gaia and 2MASS magnitudes help in sorting AGB stars?
What sorts of variable objects can be found in a trove of infrared data?