The world's most complex ground-based observatory is now peering into the invisible universe.

The Atacama Large Millimeter/submillimeter Array, known as ALMA, has officially opened for scientific research. This video explores how this massive, still-under-construction facility captures cosmic views that remain completely hidden from traditional visible-light and infrared telescopes.

ALMA represents the most intricate ground-based astronomical project currently in existence. By operating in the millimeter and submillimeter wavelengths, it provides a unique perspective on the cosmos that standard optical instruments simply cannot detect.

Even while the facility remains under active construction, its initial imagery demonstrates the power of this new technology to reveal previously unseen features of the universe. This milestone marks a significant shift in our ability to observe celestial phenomena.

Source: ESOcast 36: ALMA Opens Its Eyes