Canada's "Humble" Telescope celebrates its 10th Anniversary

 Earthshine President Randy Attwood with MOST in the clean room at the University of Toronto Institute for Aerospace Studies in 2002

Earthshine President Randy Attwood with MOST in the clean room at the University of Toronto Institute for Aerospace Studies in 2002

Ten years ago the MOST spacecraft was launched from a remote launch pad in northern Russia.  MOST was placed in a Sun-synchronous orbit (which meant the Sun was always visible)  Constant sunlight powered MOST as it observed single stars for weeks at a time.  It constantly measured the brightness of these stars - once every minute or so.  

This information told astronomers a lot about the interiors of these stars light years away.  MOST performed better than space telescopes 10 time more expensive.  It lasted years longer than expected.