Help Globe at Night achieve their goal of 15,000 data points this year! Globe at Night is an international citizen science campaign to raise public awareness of the impact of light pollution. Citizen-scientists are invited to measure and submit their night sky brightness observations. So far in 2018, citizen scientists from around the world have contributed 4,800 data points! You can download the Globe at Night app on your smartphone, tablet or computer at their website (www.globeatnight.org) and join other citizen scientists submitting real-time data. Tonight's focus will be on the Persus constellation.