Author(s): R Barrio-Perotti, E Blanco-Marigorta, K Arguelles-Diaz and J Fernandez-OroAffiliation(s): Departamento de Energia, Universidad de Oviedo, Campus de Viesques, 33271 Gijon, Asturias, Spain

Scientists at the University of Liverpool have discovered a five-sided ice chain structure that could be used to modify future weather patterns.

J.K. Rowling may not have realized just how close Harry Potter's invisibility cloak was to becoming a reality when she introduced it in the first book of her best-selling fictional series in 1998. Scientists, however, have made huge strides in the past few years in the rapidly developing field of cloaking. Ranked the number five breakthrough of the year by Science magazine in 2006, cloaking involves making an object invisible or undetectable to electromagnetic waves.