A disintegrating planet orbits a giant star. Credit Jose-Luis Olivares, MIT MIT astronomers have discovered a planet some 140 light-years from Earth that is rapidly crumbling to pieces. The disintegrating

Integrated intensity maps of the 0.9 mm dust continuum emission (taken from Rosotti et al. (2020)) and molecular line emission from the HD 100453 disk. For the line maps, the

The dominant phosphorous reservoirs throughout the HD 100546 disk. Left-hand panel: a map of the calculated disk temperature structure, which dictates phosphorous mineral stability. Normalised height above midplane is given

CN measurement limits in the exocomet frame for a CN line width of 2.7, 10 and 20 km s−1. Contours show signal-to-noise upper limits. — astro-ph.EP The young (23 Myr)

Summary of the geodynamic, topographic, climatological, and biogeographical evolution of the system. Regional paleogeography with profiles showing mantle density anomalies from Straume, et al. 68 — Nature . What roils