I will tell you about the observatory on Mount Graham in Arizona. Well, It's got one of the biggest Binocular Telescope. Scientists will be studying the formation of solar systems through this telescope. This Binocular device receives PLANETQUEST, the second of two essential telescope mirrors. The size of this mirror is 8.4-meter (27.6 foot) in diameter. The place where these giant binoculars are located is now under construction, so you won't be able to visit this place for another couple of months.
But anyways, the combined mirror surface area will be able to catch the light of planets trillions of miles away.