New simulations suggest that binary black hole systems in the disks surrounding active galactic nuclei initially expand, but as the disks surrounding each black hole grow hotter, the systems start to contract.

A search for companions of 1,157 nearby stars yielded 301 companions — 49 of which were new discoveries — and allowed for new estimates of the multiplicity fractions of FGK and M stars.

A reevaluation of the Moon’s crater record suggests that the rocks at the Apollo 14 landing site are 200 million years older than previously thought, which has implications for the surface ages of other solar system bodies.

A survey of hundreds of thousands of asymptotic giant branch stars in our galactic neighbor, Andromeda, suggests that 0.9–35.5% of the galaxy’s dust is generated by these evolved stars.

Some stars near the galactic center and in the plane of the Milky Way show perplexing trends in fluorine abundance that are not predicted by any stellar chemical evolution models.

The discovery of a subdwarf B star classified as a tidally tilted pulsator — a star with its pulsation axis aligned with the tidal axis of its binary system — greatly broadens our understanding of these objects.