First Light for GRAVITY

Published: 13 Jan 2016
GRAVITY beam combiner

The first stage of commissioning of the new VLTI instrument GRAVITY has been completed with the successful combination of light from the four VLT Auxiliary Telescopes. During the commissioning, the Trapezium star cluster in Orion (M42) was observed and ϑ1 Orionis F was discovered to be a binary. See Release eso1601 for more details.