Electromagnetic Telescope

Device the 20th century Carl Jaroch was attempting to build when he accidentally created a neutrino emission chamber with enough power to rip a hole in the space-time continuum. (Sensitivity 101 [TRK]) The device was confiscated by FBI Agents Mulder and Scully in their investigation of strange happenings at Greenbriar Mall. It was activated again causing an away team from the USS Aerostar visiting 20th century Earth to have their minds exchanged with their 20th century ancestors. (''Out of Time [VEX])

An actual electromagnetic telescope, when working properly and not ripping holes in the universe, is designed to collect and record electromagnetic radiation.