David Vallés-Pérez et al 2021 ApJL 920 L2
New simulations challenge the idea that the sparse gas within cosmic voids — underdense regions of the cosmic web — is a pristine environment for studying galaxy formation and evolution.
Ariel N. Deutsch et al 2021 Planet. Sci. J. 2 213
Lunar craters with stable deposits of ice tend to be smoother than those without, but it might be subsurface ice rather than visible ice that reduces the ruggedness of some craters at the Moon’s poles.
Renyi Chen et al 2021 ApJ 919 50
A new software package that describes the connection between the spins and orbits of planets has been applied to the TRAPPIST-1 system, showing how the transit times of this system will vary within the next decade.
Kenneth Houston et al 2021 AJ 162 151
The key to improved detection rates of technosignatures from extraterrestrial civilizations may lie in low-frequency radio observations made by arrays of telescopes.
Antonio Ambrosone et al 2021 ApJL 919 L32
Theorized neutrino emission from starburst galaxies is estimated to be slightly beyond the reach of current neutrino observatories, but future instruments should be able to put this theory to the test.
Jennifer B. Bergner and Fred Ciesla 2021 ApJ 919 45
Models suggest that organic molecules formed in the interstellar medium could be successfully transported to young planets via impacts by comets.