game-theory-helps-focus-the-hunt-for-alien-civilizationshttps://www.astronomy.com/tags/alien-life/page/5/Alien Life | Page 5 of 10 | Astronomy.comhttps://www.astronomy.com/wp-content/uploads/sites/2/2021/09/shutterstock_1310821841.jpg?fit=650%2C433InStockUSD1.001.00alien-lifeexoplanetsplanets-observingarticleASY2023-05-182020-10-2344814