Yuki Kimura et al 2021 ApJL 917 L5
Laboratory experiments and simulations suggest that the parent body of the Tagish Lake meteorite was >160 km in diameter before being split apart by collisions, possibly in transit from the Kuiper belt to the asteroid belt.
V. Ashley Villar et al 2021 ApJS 255 24
A neural network has succeeded in identifying rare transient events in simulated data well before they reach peak brightness, potentially greatly enhancing our ability to follow up on these fleeting events.
Reka M. Winslow et al 2021 ApJ 916 94
A coronal mass ejection launched on 10 October 2019 was observed by the Parker Solar Probe on 13 Oct and by STEREO-A on 14 Oct, allowing observations of the short-term radial evolution of the ejection.
D. D. Dzhappuev et al 2021 ApJL 916 L22
A gamma-ray flare has been found in coincidence with the recent neutrino detection from the Cygnus Cocoon, providing the first evidence for the joint production of high-energy neutrinos and gamma-rays in a galactic source.
T. A. Cassidy et al 2021 Planet. Sci. J. 2 175
Observations reveal sudden brightening of the emission from Mercury’s tenuous, extended atmosphere, caused by the breakup of meteoroids 10-20 cm in diameter.
Zachary R. Morse et al 2021 Planet. Sci. J. 2 167
High-resolution images of the Moon’s surface from Lunar Reconnaissance Orbiter aid in the planning of a proposed rover mission to Schrödinger basin in order to study lunar chronology, volcanism, and impact cratering.