Low-metallicity M-type subdwarfs, late M dwarfs, and what appear to be L and T dwarfs make up the 127 newly discovered high-proper-motion objects from the United Kingdom Infrared Telescope Hemisphere Survey.
Simulation results suggest that supernova feedback dominates in galaxies with relatively low-mass halos, while active galactic nucleus feedback plays a larger role in galaxies with higher-mass halos.
When two neutron stars merge, the merger remnant can have a strong enough magnetic field to affect the properties of the matter and change the mechanisms of jet and wind launching.
Barnard Crater on Mars appears to have formed about 3.8 billion years ago and shows signs of sustained periods of infill, resulting in an infilled thickness of 1 kilometer on the crater floor.
Nine unidentified Fermi–Large Area Telescope sources are likely pulsar wind nebulae; if verified, these discoveries will bring the number of known Fermi-detected pulsar wind nebulae from 12 to 21.
Diving deep into various instrumental systematics and data analysis options, a research team has found that the purported detection of biosignature gases in the atmosphere of K2-18b is disfavored.