Known simply as ‘Gravity’, this multi-mode interferometer combines light from several telescopes to enable observations simulating a single extremely large telescope. Applied to the European Southern Observatory’s Very Large Telescope array, ‘Gravity’ detected a binary star pair within the Trapezium Cluster during its first observing run.
Credit: ESO/M. McCaughrean/GRAVITY consortium, Nick Risinger (skysurvey.org)/mash mix: Space.com
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