Calculations suggest that the waves in the rings of Uranus and Neptune can help focus our understanding of these planets’ interiors, but an orbiting spacecraft is likely necessary to make these measurements.

Planetary systems containing a small, close-in planet are more likely to also host a distant gas giant than other systems, but less likely to host a massive giant planet orbiting at a distance of 0.3–3 au.

Two neutrino events thought to be of atmospheric origin are consistent with one formation scenario for luminous fast blue optical transients, though follow-up searches are necessary to draw firm conclusions.

High-mass white dwarfs may attain magnetic fields through an existing dynamo, while relaxation of a magnetic field from interior to surface may explain the slow-to-appear fields of low-mass white dwarfs.

UV Ceti frequently flares at optical, ultraviolet, soft X-ray, and radio wavelengths, and researchers have now observed a 2-hour radio outburst in high spectral resolution, allowing them to assess its cause.

The new 0.7-meter robotic telescope, commissioned in 2018, will contribute to time-domain astronomy, in particular helping researchers make follow-up observations of gamma-ray burst sources.