World's largest space observatory opens in Chile

world's largest ground-based observatory opened in northern Chile, wielding unprecedented power to peer into the remotest regions of the universe. 
 

The ALMA space observatory was inaugurated on Wednesday on a desert plateau some 5,000 meters above sea level, at a ceremony attended by President Sebastian Pinera and other dignitaries. 

"ALMA is a huge telescope 16 kilometers (10 miles) in diameter," said the facility's director Thijs de Graauw, as it was declared officially opened. Amid excited applause, 59 of the 66 antennas slowly began to rotate and point toward the interior of the universe.

By October, all the antennas will be fully installed and operational. Gianni Marconi, an astronomer at the massive ground array of telescopes, recently proudly proclaimed to AFP that ALMA is "the largest observatory that has ever been built."

ALMA -- short for the Atacama Large Millimeter- submillimeter Array, an acronym which means "soul" in Spanish -- is a joint effort among North American, European and Asian agencies.

The observatory is located near Pedro de Atacama, a desert town popular with tourists. With almost no humidity or vegetation to block its view of the heavens, ALMA's antennas range in diameter from seven meters to 12 meters. 

De Graauw told reporters recently that ALMA's ultra-precise equipment would be used to seek answers to big questions -- star formation, the birth of planets and how the system was created after the Big Bang. Unlike optical or infrared telescopes, ALMA can capture the faint glow and gas present in the formation of the first stars, galaxies and planets in an extremely cold region of the universe.