The first three-dimensional radiation–magnetohydrodynamics simulations of brown dwarf formation support the hypothesis that these objects form in a star-like way.
An extremely luminous and massive galaxy with excess blue emission in the rest-frame ultraviolet may provide an example of what the mysterious “little red dot” galaxies evolve into.
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.