Image of the Day: October 2011

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First Image from ESO's Atacama Large Millimeter/submillimeter Array Observatory

Credit: ESO
Monday, October 3, 2011: The most complex ground-based astronomy observatory, the Atacama Large Millimeter/submillimeter Array (ALMA), has officially …Read More »

href="">opened for astronomers on the Chajnantor plateau in Chile. The first image released shows the Antennae Galaxies in a way that cannot be seen by visible-light and infrared telescopes. The galaxies, seen here, consist of a pair of colliding galaxies with distorted shapes. ALMA's new view reveals things that we cannot see in visible light: clouds of dense cold gas from which new stars form. Presently, only around a third of ALMA's planned 66 radio antennas operate, yet still this represents the best submillimetre-wavelength image ever made of the Antennae Galaxies.

— Tom Chao   Less «
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