Using X-ray observations from the Chandra X-ray Observatory and radio observations from the Expanded Very Large Array
in New Mexico they watched two black hole systems until their feeding frenzies ended.
On the bright side, freeing up some money will enable the NSF to increase support to build expensive but cutting-edge optical and radio observatories that have enormous discovery potential--such as the Giant Segmented Mirror Telescope, the Large Synoptic Survey Telescope, the Advanced Technology Solar Telescope, the Expanded Very Large Array
, the Square Kilometre Array, and the Atacama Large Millimeter Array.
Simultaneous observations made with the National Radio Astronomy Observatory's Expanded Very Large Array
showed a radio jet from the black hole was not present when the ultra-fast wind was seen, although a radio jet is seen at other times.