Astronomers have discovered enormous smooth shapes that look like vapour trails in a gigantic galaxy cluster. These 鈥榓rms鈥 span half a million light years and provide researchers with clues to a billion years of collisions within the 鈥済iant cosmic train wreck鈥 of the Coma cluster.
Study reveals chemical composites of exoplanet atmospheres 128 light years away. Scientists say techniques will 鈥渙ne day provide evidence of life beyond Earth鈥.
