The Hubble Array was a space-based telescope active around Earth in at least the 21st century. Sally Jacobs of UNIT once reported that the array was following the course of the Sycorax ship. (TV: The Christmas Invasion)
Behind the scenes Edit
In the real world, it's somewhat imprecise to call the Hubble Space Telescope the "Hubble Array", because the arrays aboard the telescope were solar reflectors used to power the device.