The Billion Dollar ALMA Observatory Can Spot a Golf Ball from 15 Kilometers
The windswept, sunburned Chajnantor plateau in Chile rises 16,500 feet above sea level and has some of the driest air on Earth. That makes it the perfect location for the world’s biggest, most sensitive, and most complex ground-based telescope. The Atacama Large Millimeter Array (ALMA) studies sub-millimeter astronomy—energy at the millimeter and sub-millimeter wavelengths where…
