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: Space shuttle delayed again The space shuttle will not fly before May 2005, according to NASA officials. This pushes the shuttle #39;s return-to-flight schedule back by two months, and postpones a vital servicing mission to the International Space Station.

Sci/Tech