In the early 1970s, Tom Bolton, an astronomer working at the University of Toronto’s David Dunlap Observatory, was the first to find strong physical evidence that black holes exist. Now, more ...

In the early 1970s, Tom Bolton, an astronomer working at the University of Toronto’s David Dunlap Observatory, was the first to find strong physical evidence that black holes really exist. Now ...

This want has been recently supplied by the munificence of Mrs. D. A. Dunlap, who has presented the University with a 74-inch reflecting telescope, as well as a handsome administrative building.

The David Dunlap Observatory opened in 1935 in Richmond Hill. For more information on this remarkable piece of Canadian history, visit www.theDDO.ca ...

The David Dunlap Observatory was selected as the GSP host site for its rich astronomical history, which includes providing the first direct evidence that Cygnus X-1 was a black hole, and its ...

There’s fresh hope for Richmond Hill nature lovers and astronomy buffs who fought the University of Toronto’s sale of the David Dunlap Observatory and its grounds to a developer last year. The ...

The University of Toronto's David Dunlap Observatory, which houses a 1.88-metre reflecting telescope in the town of Richmond Hill, Ontario, may see last light as soon as 30 June. The university is ...