Some sources identify the Soviet space probe Luna 3 as the first example of an artificial satellite undergoing Lidov-Kozai oscillations. Launched in 1959 into a highly inclined, eccentric, geocentric orbit, it was the first mission to photograph the far side of the Moon. It burned in the Earth's atmosphere after completing eleven revolutions. However, according to Gkolias "et al.". (2016) a different mechanism must have driven the decay of the probe's orbit since the Lidov-Kozai oscillations would have been thwarted by effects of the Earth's oblateness.