Modified gravity theories typically struggle to explain the Bullet Cluster, but new research shows that a variant of modified Newtonian dynamics may be able to reproduce its famous lensing signature.
For the first time, the Hubble Space Telescope has detected the decrease in brightness from a rocky planet passing behind its host star, offering a new perspective on the lava world TOI-2431b.
Supercritical accretion of black holes may drive the formation of enigmatic “little red dots.”
Most galaxies are expected to contain at least one massive black hole, but how robust is this prediction? New research uses simulations to look at which galaxies tend to have more or fewer black holes, and with what properties.
Get to know your neighbors with a new database of nearby star clusters, stellar associations, and substellar objects.
The white dwarf–brown dwarf pair J0404+1112 — one of only about a dozen known systems like it — offers researchers a chance to study a substellar atmosphere blasted with intense radiation.
Globular clusters have far fewer binary stars than the solar neighborhood. New research identifies black hole burning as the culprit.
Why do spicules — tiny spikes of plasma on the Sun — appear to rotate, split, and merge? New simulations reveal the possible cause of these motions.
Researchers have discovered a millisecond pulsar with two stellar companions — one of only a handful of these rapidly spinning stellar remnants known to be in a triple system.
The hot Jupiter WASP-12b is on a collision course with its host star, and it’s heading that way faster than expected. New research examines a possible explanation for the planet’s speedy inspiraling.