The Moon is our only natural satellite that we currently know about with certainty. There are other objects in space that orbit the Sun but theyâ€™re not classed as moons. Some of these might "appear" to orbit the Earth but they don't.
For example, 3753 Cruithne is an object thatâ€™s often called Earths second moon, but this isnâ€™t true. Itâ€™s actually an asteroid that orbits the Sun and every so often it travel past the Earth in a way that might seem as though it orbits Earth.
Apart from the hoaxes there are some interesting facts about objects that could become â€śtemporaryâ€ť natural satellites. There is only one such known object (2006 RH120) that was confirmed in 2006 and 2007. This object was a small asteroid with a diameter of only about 5 meters.
Some other claims to Earthâ€™s second moon are the Waltemath's moons which were disregarded by scientists and Petit's moon which failed to be proven.