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One of the biggest and brightest man made satellites you can see with the naked eye is the International Space Station (ISS). It is the largest man made object in space and it travels in Low Earth Orbit, about 348 km (216 miles) from the surface of the Eath. It is easy to spot on a clear evening if the timing is right. Other satellites that are easy to spot are the Hubble Space telescope, China's Tiangong-1 space laboratory, and (under specific conditions) the Space X Dragon capsule. Summer time is the best time to view satellites since it has the shortest nights and Low Earth Orbiting satellites are illuminated longer by the sun. They are easy to spot either right after sunset or right before sunrise.