For centuries, the Amazon rainforest was described as an untouched wilderness where only small, scattered groups of people could survive. Early-twentieth-century scholarship argued that the region’s ...

Deep in the Amazon rainforest, researchers have uncovered an ancient structure that rivals the size of some modern cities. Utilizing advanced technologies like LIDAR, scientists have revealed vast, ...

Diagram of the electromagnetic spectrum, with visible spectrum and light highlighted separately. The full range of electromagnetic radiation, organized by frequency in Hertz and wavelength in meter.