Astronomy in Chile Astronomy in Chile Chile can be considered astronomy's world capital. In 2011, Chile was home to 42% of the world's astronomical infrastructure consisting mostly of telescopes, and by 2020 it will contain around 70% of the global infrastructure. In the Atacama desert region located at northern Chile, the skies are exceptionally clear and dry for more than 300 days a year. These optimal conditions have attracted the world's scientific community to develop in the Atacama desert the most ambitious astronomical projects in the history of mankind. Chile welcomes a diverse and active astronomical community that includes Chilean and international professionals
Flora of the Sonoran Desert absent on the California side of the Colorado River. Desert Holly ("Atriplex hymenelytra") can tolerate even the hottest and driest sites. The area where two vegetation types border, overlap, and transition is called an ecotone. The ecotone between the hotter, drier Colorado Desert and that of the relatively cooler and wetter Arizona Upland occurs from Parker, Arizona southeast to near Phoenix, then south to Organ Pipe Cactus National Monument. Density of vegetation gradually diminishes moving from the Arizona Upland into the Colorado Desert proper. can be found with stems climbing through shrubs and other vegetation, producing "spectacular" floral displays on