Space Image of the Day Gallery (May 2017)

By Space.com Staff
published

'Alien' Glow Over ALMA

S. Fandango/ESO

Wednesday, May 31, 2017: An eerie green glow illuminates the European Southern Observatory's Large Millimeter/submillimeter Array (ALMA), a group of 66 telescopes in Chile's Atacama Desert. Green lights flash to signal that the telescopes are in use (and definitely have nothing to do with aliens). — Hanneke Weitering

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.

Space.com Staff
Space.com Staff
News and editorial team

Space.com is the premier source of space exploration, innovation and astronomy news, chronicling (and celebrating) humanity's ongoing expansion across the final frontier. Originally founded in 1999, Space.com is, and always has been, the passion of writers and editors who are space fans and also trained journalists. Our current news team consists of Editor-in-Chief Tariq Malik; Editor Hanneke Weitering, Senior Space Writer Mike Wall; Senior Writer Meghan Bartels; Senior Writer Chelsea Gohd, Senior Writer Tereza Pultarova and Staff Writer Alexander Cox, focusing on e-commerce. Senior Producer Steve Spaleta oversees our space videos, with Diana Whitcroft as our Social Media Editor.