Astronomers working with NASA's Chandra X-ray Observatory have seen the giant black hole Sagittarius A* rejecting its ‘food’ of vast gas clouds as...
A long-sought “echo” of light that promises to reveal more about supersized black holes in distant galaxies has been identified by an international...
The world's most expensive scientific instrument will be ready for full experiments in 2009; Andy Parker describes Cambridge's role in constructing...
