Five years of imagery from NASA's Transiting Exoplanet Survey Satellite (TESS) have been stitched together to create an all-sky and northern & southern ecliptic mosaics. Credit: NASA/MIT/TESS and ...

Ansar Lemon, an engineering PhD student at Harvard University, says the team modeled how the brightness and color of the sky at the poles changed with the injection of sulfate, calcium carbonate, and ...