Orbital Technologies, a company based in Moscow, and Rocket & Space Corp. Energia, a spacecraft manufacturer, have partnered to build a hotel that would orbit Earth. The Commercial Space Station, as it has been dubbed, is scheduled to be ready by 2016, according to a company representative. But Bigelow Aerospace, a Las Vegas-based company owned by hotel chain founder Robert Bigelow, plans to have its own commercial space station ready by 2015.