The James Webb Space Telescope is a decade late and billions of dollars over budget. But astronomers are already setting their sights on its successors. Plus, second-grader Nina Del Bosque wants to know about stinging caterpillars and their role in the ecosystem.
The news raises social, ethical, and regulatory questions—for both scientists and society.
A new report says our warming world will hit all sectors of the U.S. economy, in ways both big and small.