This Canadian satellite was supposed to last 2 years in space. It's now celebrating 20

The satellite was only supposed to last two years. But it's still healthy at 20. Canada's Scisat is defying all lifetime expectations at a crucial time in human history, helping track the effects of human-driven climate change. Throughout its long lifespan — its 20th launch anniversary fell on Aug. 12 — Scisat has been providing consistent data to help us heal Earth's atmosphere, if we take the time to pay attention. Three things have allowed the Canadian Space Agency to keep operating the satellite for so long, program lead Marcus Dejmek told Space.com. First, the satellite needs little fuel to stay stable in its orbit. More

(Source: Space.com - Aug 20)