Dazzling Rings and Dynamic Atmosphere Stun in Webb’s Spectacular New View of Ice Giant Uranus

Christiaan Huygens was one of the first astronomers to apply mathematical principles to the design of optics rather than trial and error, and his telescope could study Saturn's ring system. The Huygenian eyepiece he invented in the 17th century is still in use today

NASA’s High-Resolution Air Quality Control Instrument Launches

Seismic Sleuths Reveal Earth’s Secret Mountains: A Hidden World Beneath Our Feet