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:  #39;Scramjet #39; Hits Almost Mach 10 A tiny unmanned NASA  quot;scramjet quot; soared above the Pacific Ocean Tuesday at nearly 10 times the speed of sound, or almost 7,000 mph, in a record-breaking demonstration of a radical new engine technology.

Sci/Tech