Microlensing events can be predicted by following the path of high proper motion stars. In this paper, the authors do just that with Gaia DR2 data.
How should the LSST observe the sky to help us understand dark energy?
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?