By Will Dunham and Scott Malone WASHINGTON/CAMBRIDGE, Mass. (Reuters) - Scientists have for the first time detected gravitational waves, ripples in space and time hypothesized 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 detected gravitational waves coming from two distant black holes - extraordinarily dense objects whose existence also was foreseen by Einstein - that orbited one another, spiraled inward and smashed together. "Ladies and gentlemen, we have detected gravitational waves.
The spectre of a third man, exiled former ruler Francois Bozize, looms just as heavily over the presidential run-off vote on Sunday. Central African Republic, a majority Christian country rich in gold, uranium and diamonds but too unstable to mine them profitably, has been torn between Muslim Seleka rebels and Christian "anti-balaka" militias since the rebels ousted Bozize in early 2013. Seleka withdrew from Bangui in 2014 and an interim president was named to lead a transition to democracy.