A man having his picture taken with a group of "astronauts" during lunch hour at Lau Pa Sat on Monday. The four "astronauts" went around the food centre entertaining people with their antics as part of the ArtScience Museum's promotion of its new exhibition, Nasa - A Human Adventure. Running from Saturday till March 19 next year, it will be the largest space flight exhibition to be held in Singapore. Over 200 artefacts and machines will be on display, including many that have travelled to space and back. Some highlights include exhibits on the gigantic Saturn V Moon Rocket and full-sized models of pioneering spacecraft from the US' National Aeronautics and Space Administration, or Nasa.