India, Feb. 28 -- Don Pettit's social media feed is packed with videos and images from the International Space Station (ISS), where he is currently posted. These visuals not only give a glimpse of the world that lies beyond our earth but also show various experiments conducted on the ISS that can help in future space travel. Recently, the NASA astronaut posted an exciting video that shows water drops dancing around a needle.

"Having an Uber Geek moment on orbit; I took a Teflon knitting needle and got charged water drops to orbit around it," Pettit posted along with a video. He also shared an image that captures overlapping frames from the clip. He wrote, "This image made by overlapping frames from my video showing a time history of the ...