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.
Yangping Luo et al 2021 ApJS 256 28
Categorization of hot subdwarfs — stars with temperatures similar to O and B stars but with lower masses — based on helium abundance reveals four separate stellar populations that likely have different origins.
Brian Jackson et al 2021 Planet. Sci. J. 2 206
The InSight Mars lander has encountered 990 whirling, windy vortices during the first two Earth years of its mission, an estimated 35% of which may have contained dust lifted from the Martian surface.
Erini L. Lambrides et al 2021 ApJ 919 43
To err is human: visual assessments of galaxy mergers are confounded by human biases, but probabilistic modeling can account for these biases and enable correct labeling of galaxies to within 1% accuracy.