Is there such a thing as an Alien? The provenance of the term is uncertain, though most people believe that it was coined by Colin Edwards in 2009, after he kept finishing in fifth place behind Valentino Rossi, Casey Stoner, Jorge Lorenzo, and Dani Pedrosa. Whatever he tried, he could not stay with them. "They are riding out of this world," he said.
The term has stuck. Since then, the term Alien has been applied to the top four riders, the only difference being that Marc Márquez has been swapped for Casey Stoner now that the Australian has retired. The reality is that since Jorge Lorenzo entered the class until the start of the 2016 season, the five MotoGP Aliens had accounted for all but two of the 143 MotoGP races held. The two non-Alien wins were by Andrea Dovizioso (Donington 2009) and Ben Spies (Assen 2011). Both of those races came in unusual conditions. The five Aliens dominated the podiums throughout that period as well.
2016 looks like becoming the year the Alien died. Or perhaps more realistically (and less dramatically) the year we had to readjust the concept of a MotoGP Alien. The season was going very much to plan up until Assen, when Jack Miller won an interrupted race in the driving rain. Then in Austria, Andrea Iannone finally did what everyone has been waiting for, won a race with a Ducati. Cal Crutchlow used a drying surface to his advantage to win at Brno, and then Maverick Viñales won at a dry but cold Silverstone. Questions were asked whether Maverick Viñales was the next Alien.