New observations of a young star cluster challenge the view that lithium depletion only occurs after 150 million years; the team also uncovered a correlation between stellar rotation rate and lithium depletion.

Combining data from Mariner 10 and MESSENGER, researchers find that space weathering processes mix graphite into the surface material in Mercury, which potentially alters the material’s phase.

Researchers analyze localization tools that may be used to pinpoint the sources of short gamma-ray bursts in light curves from the Anticoincidence Subsystem on the Compton Spectrometer and Imager (COSI).

Researchers lay out a path to finding Earth-sized moons around Jupiter-sized planets by detecting when the moon ducks behind the planet from our point of view.

A circumplanetary envelope surrounding a low-mass planet may be the cause of a source with emitting radius of 0.5–4 au embedded within the larger PDS 66 protoplanetary disk.

Using an automatic stellar stream detection algorithm, researchers have discovered 87 stellar streams associated with globular clusters in our galaxy, doubling the number of known stellar streams.