NASA probe could reveal comet life, scientists claim

UK team say Deep Impact will reveal organic matter

Cardiff (UK) scientists are playing a major role in a NASA mission, which they believe could reveal living matter in the icy layers beneath the surface of a comet.
NASA's Deep Impact spacecraft will make a historic encounter with Comet Tempel-1 on 4th July, when a metre-long projectile will crash into the comet and tunnel through its outer layers, producing a crater and a plume of gas and dust.