Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: NASA sets Swift launch for Saturday Swift #39;s new launch date is Saturday, if NASA, Boeing and the Air Force can replace and test components of the rocket in time. The gamma-ray observatory #39;s 

Sci/Tech