ScienceGlobal issuesWhy is the universe dark?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGlobal issuesCornelia Borrmann09/09/2022September 9, 2022This week's DW viewer question comes from Moacir Machado Monteiro in Sao Paulo, Brazil.https://p.dw.com/p/4GcWmAdvertisement