Planets detected via gravitational microlensing might either be at very wide separations from their host stars or lack host stars entirely; a search for the hosts of five such planets found no associated stars.

Laboratory experiments show that critical components for life could have reached concentrations high enough to form the building blocks of DNA and RNA in warm ponds on early Earth.

Using a fully relativistic global simulation, researchers modeled the long-term behavior of the debris created during a tidal disruption event, when a star in ripped apart by a supermassive black hole.

RNO 54, an isolated young stellar object with a comet-like nebula, has been found to belong to the rare class of FU Orionis stars, which have bright infrared and millimeter emission.

JWST’s sensitive near-infrared camera failed to detect the planet candidate Fomalhaut b, supporting the conclusion that this object is instead a dust cloud; follow-up observations will investigate a new planet candidate.

What do cerium atoms have to do with collisions of neutron stars? Researchers have confirmed that several absorption features in the spectrum of a kilonova observed in 2017 were due to this element.