Astronomers have discovered that a radio jet from the supermassive black hole at the heart of the Milky Way could be pointed almost directly towards the Earth. By incorporating the world's most powerful telescope, Alma, into an array of sky-scanning antennae, astronomers have managed to pinpoint the radio emission to a smaller region of space than previously thought. The Alma telescope - short for Atacama Large Millimetre Array - promises to probe deeper into space than ever before, and is made up of 50 antennae arranged over a 10km (6.2mile) radius. The $1.3bn (£870m) observatory is based in Chile and works by combining radio waves collected by the antennae to construct images of space. In a new paper led by University of Nijmegen PhD student Sara Issaoun published in the Astrophysical Journal, scientists have for the first time penetrated the foggy cloud of hot gas obscuring the black hole at the centre of our galaxy. They discovered that the radio emission comes from such a small