The David Dunlap Observatory is Canada's largest optical telescope with a primary mirror measuring more than six feet (74") in diameter. Constructed in the 1930s, the Observatory is located in the heart of Richmond Hill, Ontario. The building is 61 feet in diameter and weighs 80 tons. The telescope itself weighs 23 tons (without its primary mirror). http://www.theddo.ca/Home/tabid/38/Default.aspx
Hubble Images a Dusty Galaxy, Home to an Exploding Star The galaxy pictured here is NGC located in the constellation of Virgo. It is not visible with the naked eye but has been captured here with the NASA/ESA Hubble Space Telescope.
Interplanetary Superhighway - Interplanetary Transport Network - Wikipedia, the free encyclopedia
NASA's James Webb Space Telescope is an $8.8 billion space observatory built to observe the infrared universe like never before. See how NASA's James Webb Space Telescope works in this Space.com infographic
Under the Spell of the Magellanic Clouds. This beautiful image of the Atacama Large Millimeter/submillimeter Array (ALMA), showing the telescope’s antennas under a breathtaking starry night sky, comes from Christoph Malin, an ESO Photo Ambassador.