THE United Nations was set today to appoint an obscure Malaysian astrophysicist to act as Earth�s first contact for any aliens that may come visiting. Mazlan Othman, the head of the UN's little-known Office for Outer Space Affairs (Unoosa), is to describe her potential new role next week at a scientific conference at the Royal Society’s Kavli conference centre in Buckinghamshire. She is scheduled to tell delegates that the recent discovery of hundreds of planets around other stars has made the detection of extraterrestrial life more likely than ever before - and that means the UN must be ready...