This paper asks what the biosphere of the Earth will look like billions of years from now, when the era of life is ending. What biosignatures might we detect from a dying planet?
This paper seeks to provide a theoretical explanation for why gravitational perturbations do not disrupt the Keplerian orbits of Earth’s satellites.
There is a small planet candidate, likely rocky, that looks like it’s being vaporized. The authors of this paper show evidence that this evaporation might be related to stellar activity, not just the planet’s proximity to its star.
This article uses theoretical modeling to estimate the influence of ice and snow on the habitability of extrasolar planets. This work differentiates itself from past efforts by including the influence of the atmosphere, and by considering planets orbiting M-dwarfs in addition to Sun-like stars.
This paper describes the measurement of the deuterium-to-hydrogen (D/H) ratio in a Jupiter-family comet, 45P. This ratio is related to the formation history of the comet and helps inform our understanding of the formation of our solar system.