On Tuesday, a gorilla ran away from its container on the International Space Station (ISS). It chased European astronaut Tim Peake across the orbiting laboratory.

Some might think it is a plot of an upcoming science fiction flick or next sequel to ‘Planet of the Apes,' but it has really happened. However, the ‘ape’ was astronaut Scott Kelly attired in a gift from his twin brother Mark Kelly that he received on the previous cargo resupply mission.

A video featured Peake apparently unloading the soft cargo container unknown of the fact that Kelly is inside and strapping it down, as an astronaut does at the time of zero gravity, and then moves out. Kelly comes out of the container, reappearing as if is flying after Peake around the Space Station.

On the station, astronauts have fully planned time tables, ranging from exercise to science experiments. Kelly and Russian cosmonaut Mikhail Kornienko will make a comeback on Earth on March 1 after living aboard the Space Station for nearly a full year.

With just around a week left in his year-long mission orbiting the planet, Kelly is ready for some entertainment onboard ISS.

Kelly tweeted, “Needed a little humor to lighten up a year in space. Go big or go home. I think I’ll do both.” While sharing the video on Twitter, the astronaut added the hashtag ‘Space Ape’.

Besides this, Kelly has been sharing his favorite photographs from the year spent in space on social media as he will soon return to Earth through Soyuz capsule.

At the time of completion of this mission, Kelly will have total 522 days living in space during four missions.