Einstein's gravitational waves detected in landmark discovery

By Will Dunham and Scott Malone WASHINGTON/CAMBRIDGE, Mass. (Reuters) - Scientists for the first time have detected gravitational waves, ripples in space and time hypothesised by Albert Einstein a century ago, in a landmark discovery announced on Thursday that opens a new window for studying the cosmos. The researchers said they identified gravitational waves coming from two distant black holes - extraordinarily dense objects whose existence also was foreseen by Einstein - that orbited one anoth