stellar axis - Lita Albuquerque

In 2006, Lida Albuquerque, a california-based artist, led an expedition to antarctica, close to the south pole in order to create her global installation Stellar Axis, which became the first and largest artwork created on the continent.
Aided by a team of researchers and astrologists from the National Science Foundation, the artist situated 99 fabricated blue spheres on the earth's icy surface: each sphere is corresponding to the exact location of one specific star in the sky above!
While the planet rotate and follow its orbit, the displacement between the original position of the stars and the spheres drew and invisible spiral of the earth's spinning motion