Letters to the Editor

Readers ask about exoplanet heating sources, combating climate change and COVID-19

By Science News Staff

- More than 2 years ago

cover of May 9, 2020 magazine issue

Warming up

Auroras inject extra energy into Saturn’s a­tmosphere, which may make it hotter than expected, Lisa Grossman reported in “Auroras could heat up Saturn” (SN: 5/9/20 & 5/23/20, p. 12). The same process could take place on exoplanets, scientists say.

Reader Jeremy Schwartz wondered if scientists consider heat sources other than stars when evaluating an exoplanet’s habitability.