With the arrival of the 54th—and final—12-meter wide radio telescope, the single largest astronomical project humanity has ever under taken can finally begin peering into the heavens at full strength.

The Atacama Large Millimeter Array (ALMA), a massive radio telescope array, will provide an unprecedented view of interstellar space where giant gas clouds slowly form into new stars. For more info on how this monumental radio telescope operates, keep reading here. [ESO - Image: ALMA(ESO/NAOJ/NRAO), J.Guarda]