Michihiro Takami et al 2023 ApJS 264 1

Researchers present new observations of jets from three young, active stars, all of which show signs of moving knots and variability over timescales of several years.

Angelo Ricarte et al 2022 ApJL 941 L12

The next-generation Event Horizon Telescope should be capable of detecting frame dragging, in which objects near a black hole’s event horizon must rotate with the black hole’s angular momentum.

Sara Faggi et al 2023 Planet. Sci. J. 4 8

Patterns of molecular abundances could be a sign of interstellar medium chemistry in comet Leonard, which also shows a complex pattern of outgassing and volatile species concentrated on its sun-warmed surface.

Mason Ng et al 2022 ApJ 940 138

A year’s monitoring of an ultraluminous pulsar suggests that the emission from the object appears to change and soften due to masking by a surrounding accretion disk.

Michaël Gillon et al 2022 AJ 164 221

An attempt to eavesdrop on optical signals from extraterrestrial civilizations found no signals, despite being capable of detecting constant signals of just a few watts.

Steven L. Finkelstein et al 2022 ApJL 940 L55

Using JWST photometry, researchers identified a galaxy with a potential redshift greater than 12; if follow-up spectroscopy confirms this finding, it means galaxies came to be less than 400 million years after the Big Bang.