Detailed imaging and spectroscopy have revealed the behavior of a prominence eruption, showing evidence of transverse motions that are consistent with Alfvén waves.

The ultimate fates of the Milky Way and its neighbor Andromeda remain uncertain, with proper motion measurements with uncertainty less than 2 microarcseconds per year needed to reach a firm conclusion.

In the first 102 months of data from the Dark Matter Particle Explorer, researchers have independently confirmed the detection of the Fermi bubbles and identified a GeV excess toward the galactic center.

By subtracting the light from gas between the galaxies of a cluster roughly 4 billion light-years away, researchers uncovered more than 900 candidate globular clusters in data from JWST.

A newly discovered distribution of dense, warm gas around a protostar, roughly in the shape of the number “9,” is unlikely to be solely due to outflows and instead may be caused by magnetic flux redistribution.

During its year-long prime mission in 2026-2027, Pandora will likely constrain the abundance of water and methane to ~1.0 dex for the atmospheres of sub-Neptune and hot-Jupiter exoplanets.

Archival data from the Chandra X-ray Observatory and the Very Large Telescope reveal the temperature, density, and thermal energy of the wind from a low-luminosity active galactic nucleus.

Combining strongly lensed gravitational wave signals with luminosity distances from their host galaxies, the Hubble constant could be measured in a way that is complementary to electromagnetic methods.

Modeling suggests that even planets within their stars’ habitable zones may become uninhabitable if they do not have a sufficient water inventory to balance their carbon cycle.

ZTF19acnskyy may be the first X-ray quasiperiodic eruption source to display correlated ultraviolet emission — another strange behavior that researchers must explain for this already unique source.

Simulations suggest that tidally locked planets have similar atmospheric escape rates to Earth analogs despite having cooler and drier atmospheres near their surfaces.

Using the Five-hundred-meter Aperture Spherical radio Telescope, researchers have discovered and measured the spins and masses of a pair of neutron stars using the pulsar timing method.

A survey of six gas giants orbiting F-type stars suggests that atmospheric escape of these planets is determined by the X-ray and extreme-ultraviolet output of their host stars as well as the Roche filling factor.

Using simulations of 20 asteroids from 0.05 to 2.4 au away, researchers demonstrate how the technique of topocentric parallax could be used to determine the distance to an asteroid in a single night.

Simulations suggest that Rubin Observatory will discover 1–2 meter-size or larger imminent impactors each year, nearly doubling the discovery rate and providing an important set of eyes in the Southern Hemisphere.

Researchers have found a rare example of a blue straggler star in the process of formation, providing direct evidence for the formation of these puzzling stars through ongoing mass transfer in a binary system.

In a sample of 171 new dual active galactic nuclei, four triplets, and one quadruplet drawn from a catalog of nearly a million quasars, researchers find that roughly 16% of targets exhibit tidal features.

Researchers find a system inclination of 41.8 degrees for WR 104; this result is at odds with previous interpretations of the system’s dust plume, but a new geometric model reconciles these results.

The observed steepening of the cosmic-ray spectrum at ~4 PeV could be a global or local feature; a local feature could be explained by sources located ~1 kpc away with ages of 0.1–1 million years.

Using three dedicated telescopes and two spacecraft in the Earth–Moon environment, researchers demonstrate the abilities of an image stacking method to detect space debris.