G. J. Cooke et al 2024 Planet. Sci. J. 5 168
It’s not enough to just be in the habitable zone: seemingly habitable exoplanets may be doomed to deadliness depending on the amount of oxygen in their atmospheres, as too much oxygen can produce lethal amounts of ozone.
Na’ama Hallakoun et al 2024 ApJL 970 L11
White dwarfs in binary systems with a main-sequence companion separated by roughly 1 au are less likely to be massive than single white dwarfs in the field, which may be due to a lack of mergers in this population.
How does a black hole’s rotation affect the motion of matter that gets close to the event horizon? New work explores the complicated structure of bound orbits and shows the fate of particles in this situation.
A new survey resulted in the discovery of 25 low-latitude quasars that lack previous spectroscopy, filling a gap in our knowledge of ultraviolet-bright quasars in this region.
Among the 10 newly discovered millisecond pulsars are six in short-period binary systems; this survey suggests that previous surveys were biased against such systems, which may be common.
Researchers put their heads together to devise a way to detect surface regions that might provide evidence for past freeze/thaw cycles on Mars.