Astrophysics and Planetary Sciences

The cover story for the August 6, 2020 issue of Nature features the optical observations of lightning flashes on Jupiter made by the Juno spacecraft. The article, “Small lightning flashes from shallow electric storms on Jupiter,” was written by select members of the NASA Mission Juno team. The team includes Paul G.

A galaxy’s size can be enough to stagger the imagination. Now try to imagine galaxy clusters, the largest gravitationally bound structures in the universe, dotted with hundreds to thousands of galaxies and permeated by large amounts of hot, X-ray emitting plasma.