Nemesis
Steel roller coaster
Flying roller coaster
Galactica is a flying roller coaster located in the Forbidden Valley area of Alton Towers amusement park in Staffordshire, England. It originally opened as Air on 16 March 2002 and is the first flying coaster manufactured by Bolliger & Mabillard. Guests ride in a prone position, meant to produce the feeling of flight, as the train passes close to the ground, under footpaths, and narrowly past trees and rocks.
The ride was refurbished for the 2016 season and reopened as Galactica. It features an 840-metre-long (920 yd) track and reaches a maximum speed of 75 km/h (47 mph; 21 m/s).