Humans
Westminster diary
SOME 50,000 mid-sized asteroids are hurtling around the Solar System (Âé¶¹´«Ã½, 1 February, p 5) . This is the estimate that astronomers agreed on at an important conference in Frascati, Italy, earlier in the year. So far, though, astronomers have spotted only some 1700 of these asteroids, any one of which could present a …