Cosmologists say there are black holes throughout the Universe, but they've never seen one and it's almost impossible to study them directly. Do they exist? <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheuniverseworks <br />#season6 <br />#episode1 <br />#areblackholereal <br />#blackhole <br />#cosmology <br />#astronomy <br />#spacetime <br />#spacescience <br />
