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The episodic but protracted delivery of foundering cold material (diapirs) to the lunar core during the first billion years activated vigorous core convection that generated peaks of high intensity in the magnetic field. This process can explain the magnetic record of lunar rocks.
The 2,000-au-long streamer of material from binary protostar Z CMa can be explained by the flyby of an object some 4,700 au away, now revealed through high-spatial-resolution ALMA and JVLA observations.
Through an analysis of broad absorption lines in a range of quasars, quasar outflows are shown to have a negative global feedback effect on star formation, demonstrated by the recovery of star formation rates after the outflows disappear.
A Bayesian imaging method for reconstructing radio emission in spatial, temporal and spectral dimensions confirms the structures on the time-varying emission ring of M87* observed by the Event Horizon Telescope, and identifies additional features.
