Science is a systematic enterprise that builds and organises knowledge in the form of testable explanations and predictions about the universe. In an older and closely related meaning, "science" also refers to this body of knowledge itself, of the type that can be rationally explained and reliably applied. Ever since classical antiquity, science as a type of knowledge has been closely linked to philosophy. In the West during the early modern period the words "science" and "philosophy of nature" were sometimes used interchangeably and until the 19th century natural philosophy (which is today called "natural science") was considered a branch of philosophy.News is packaged information about new events happening somewhere else; or, alternatively, news is that which the news industry sells. News moves through many different media, based on word of mouth, printing, postal systems, broadcasting, and electronic communication. Common topics for news reports include war, politics, and business, as well as athletic contests, quirky or unusual events, and the doings of celebrities.A report or account is any informational work (usually of writing, speech, television, or film) made with the specific intention of relaying information or recounting certain events in a widely presentable form.