A (really) long exposure

Rui Santos, taken from Leiria, Portugal In this solargraph, the Sun’s journey across the sky is captured continuously for 43 days, its trails interrupted by overcast days and passing clouds. To create the image, the imager transformed a beer can into a pinhole camera and lined the interior with light-sensitive […]

The Earth Observer Editor’s Corner: January–March 2025

NASA’s Earth Observing fleet continues to age gracefully. While several new missions have joined the fleet in the past year, scientists and engineers work to extend the life of existing missions and maximize their science along the way. The crowning example is the first Earth Observing System (EOS) Flagship mission, […]