The Canadian Space Agency‘s MOST microsatellite is scheduled to blast into orbit on June 30. Built at Dynacon of Toronto, and the universities of British Columbia and Toronto, MOST (Microvariability & Oscillations of Stars)is being flown from Toronto to Moscow and is scheduled to arrive Monday at its launch site, the Plesetsk Cosmodrome in northern Russia.

MOST, Canada’s first space telescope, will make specialized observations beyond the capacity of any other instrument, including the Hubble Space Telescope. Once in orbit 820 kilometers (510 miles) above the Earth, MOST will circle the planet in 100 minutes, at 27,000 kilometers per hour (16,778 mph), passing multiple times daily over ground stations in Toronto and Vancouver, and a backup in Vienna.