Latest Issue 12 Feb 2016 Latest Issue 12 Feb 2016 In physics, gravitational waves are ripples in the curvature of spacetime that propagate as a wave, travelling outward from the source. Predicted to exist by Einstein in 1915 on the basis of his theory of general relativity, gravitational waves theoretically transport energy as gravitational radiation.DAVID PARKER / Getty Images NewsSpace Got them! Gravitational waves detected – at last Einstein would be stoked. by Alan Duffy Feature Space Gravitational waves – your questions answered by Belinda Smith What are they, and why should we care? News Physical Sciences How does LIGO look for gravitational waves? by Cathal O'Connell The most sensitive ruler in the galaxy. News Space 'The success is very sweet': gravitational wave triumph in quotes by Belinda Smith The story told by those in the know. News Technology UCL sets new digital data speed record by Viviane Richter 50,000 times faster than today's superfast internet. News Space NASA puts Pluto's geology on the map by Bill Condie Data continue to flood in from the New Horizons' mission. Feature Life Sciences How the animal kingdom plays the dating game by Viviane Richter Out to impress a prospective partner this Valentine’s Day? You’re not alone.