Recent news stories have reported on the discovery of a lost Mayan city by William Gadoury, a 15-year-old from Canada.
According to these reports, Gadoury noticed a correspondence between the locations of Mayan cities and Mayan constellations (the articles I have read do not go into more detail) and then analysed satellite imagery in the region of a "missing" city, and noticed the outlines of several rectangular structures beneath a forest canopy.
For example, see this article in The Independent, which says
William Gadoury, from Quebec, came up with the theory that the Maya civilization chose the location of its towns and cities according to its star constellations.
He found Mayan cities lined up exactly with stars in the civilization's major constellations.
Studying the star map further, he discovered one city was missing from a constellation of three stars.
Using satellite images provided by the Canadian Space Agency and then mapped on to Google Earth, he discovered the city where the third star of the constellation suggested it would be.
Is there any truth to this story? What evidence is there to suggest that Gadoury has discovered a hidden Mayan city (as opposed to, for example, some reasonably old but much more recent set of man-made structures hidden beneath the forest canopy)?