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A model investigating the build-up of the atmosphere of Venus shows that it could have originated from a vigorous phase akin to plate tectonics during the first billion years of its evolution.
Measurements of Jupiter’s gravity by the Juno mission have established that the winds extend 3,500 kilometres below the surface. Cylindrically oriented zonal flows provide the best match in a new model using gravity harmonics up to degree 40.
High-resolution observations using a network of ground-based radio dishes and one telescope in space have revealed filamentary structures in the source 3C279. These filaments may explain the origin of radio variability in blazar jets.
Giant impacts can hit Venus harder than Earth in the end stages of planetary formation, super-heating Venus’s core. Slow escape of that heat drives long-lived surface volcanic activity.
Physics-informed neural networks allow the construction of state-of-the-art models of magnetic fields in active regions on the Sun in real time, enabling rapid investigation of the source regions for space weather.
Recent detection of polarized thermal emission from dust grains in a high-redshift, rapidly star-forming galaxy can give us an insight into the formation and evolution of magnetic fields in large-scale structures of the early Universe.
A quasar has taken part in the gravitational lensing of a background galaxy into an Einstein ring, which enables a remarkable measurement of the host galaxy lensing mass.
A statistical study of the variable X-ray flux from individual knots within jets supports a model that identifies a secondary population of electrons as the source of the synchrotron emission in active galactic nuclei jets.
Observations of scattered X-rays from the Central Molecular Zone suggest that Sagittarius A* was much more active in the past, and moreover provide an approximate map of the location of the illuminated molecular clouds in the Galactic Centre.
A rare observation of a quasar lens challenges the cold dark matter paradigm by accounting for anomalies with stochastic interactions of wave dark matter lenses.
The different roles of outflows in the removal of angular momentum from young stellar systems are becoming clearer with high-angular-resolution spectral-line studies.
