..what do you think it is?
Her Secret Is Patience is a public art sculpture commission designed by artist Janet Echelman for the city of Phoenix. Its creation was the result of collaboration between the artist and a team of award-winning engineers, architects, planners, and fabricators. It is located downtown in the Civic Space Park across from the Walter Cronkite School of Journalism at Arizona State University. The sculpture consists of painted, galvanized steel; polyester twine netting; and colored lights. The title of the piece is a quote from Ralph Waldo Emerson and during construction it was unofficially titled Sky Bloom. The project had a budget of USD 2.5 million.(wiki)
..an alien tornado?