Readers ask about Mars dust storms, Fermi bubbles and more

cover of July 4, 2020 & July 18, 2020 issue

Mars dust up

Predicting dust storms on Mars will help keep rovers and future astronauts safe on the planet’s surface, Lisa Grossman reported in “How upcoming missions to Mars will help predict its wild dust storms” (SN: 7/4/20 & 7/18/20, p.