Physicists have puzzled for decades over a form of matter that makes up 90 per cent of galaxies, including our own Milky Way, but which they've never seen.

Now they may finally have solved the mystery of ''dark matter''.

Professor Sam Ting, a Nobel laureate in physics, says his forthcoming paper on dark matter 'will not be a minor paper'.

The answer may come from Sam Ting, a Nobel laureate in physics who recently said his forthcoming paper on the nature of dark matter, likely to be published this month, ''will not be a minor paper''.

Physicists who met this past weekend for a dark matter workshop at Texas A&M University certainly hope so.