They sound cute and cuddly, but the white dwarfs that Kurzgesagt is talking about here will be the last bastions of light and energy in the universe as our universe eventually expires. These highly dense objects are basically the remnants of stars after they burn out.
Reigarw presents a comparison of all kinds of matter in the universe, from the tiniest subatomic particles to giant superclusters of galaxies, you’ll quickly feel insignificant right after we zoom past the human race. The voiceover is a bit silly, but it’s still amazing.
While Kyrie Irving might believe the Earth is flat, most rational humans are willing to go along with the scientific evidence that’s right in front of us. In this classic clip from Carl Sagan, he shows off some very basic observations which prove this place is an orb and not a sheet.
Wendover Productions contemplates the hypothetical of what we should do if and when we ever encounter an alien species, proactive measures to seek out other species, and reminding us along the way how mankind has a long history of conquering new people it meets.