Researchers explore the possibility that the interior of Jupiter’s highly volcanic moon, Io, contains a “magmatic sponge”: a layer consisting of melted material and interconnected solid material.
New Hubble Space Telescope observations provide some evidence for the presence of water vapor in the atmosphere of a warm Neptune exoplanet, which may eventually help uncover the planet’s evolutionary history.
A model in which chocolate chip nebulae are embedded in the cookie-ish interstellar medium is able to reproduce the pattern of dust extinction derived from a sample of Milky Way–like galaxies.
A new consideration of boundary conditions for models of the Sun’s upper atmosphere, or corona, may provide a way to cut down on artificial electric field generation in magnetohydrodynamics models.
Researchers propose that whether the length of a star’s magnetic activity cycle increases or decreases with stellar rotation rate depends on the star’s metallicity.
Radio observations of a shell-like supernova remnant reveal it to be located within the Local Arm of the Milky Way, and estimates of the shock history suggest that the remnant is about 10,000 years old.