The James Webb Space Telescope is turning distant exoplanets from anonymous dots of light into worlds with weather, chemistry, and sometimes even hints of clouds. By dissecting the faint starlight ...

Photosynthesis changed Earth in powerful ways. When photosynthetic organisms appeared, it led to the Great Oxygenation Event. That allowed multicellular life to evolve and resulted in the ozone layer.

In the long and hallowed history of flight, engineers are writing a new chapter. It’s a chapter that involves skies more distant than the stratosphere of our own world. Space flight designers today ...