Col. Chris Hadfield, the Canadian astronaut who became a social media celebrity during his mission aboard the International Space Station in 2013, took to Twitter on New Year’s Eve to offer reasons for optimism in a year where divisiveness dominated the headlines.

“If you refocus on the things that are working, your year will be better than the last,” Hadfield tweeted. Here’s his list of things to be thankful for from the year 2016: