Every video here comes from a channel we follow that explains science for everyone: NASA, PBS, Kurzgesagt, Veritasium and many smaller teachers. No UFO or conspiracy channels. Stars come from public numbers, not a review: reach for the channel's size, how many viewers liked it, and how many commented.
Science explained for everyone, from more than 70 channels: NASA, the European Space Agency, PBS, Kurzgesagt, Veritasium, SmarterEveryDay, 3Blue1Brown and many smaller teachers. Pick a shelf: space, rockets, physics, the human body, evolution, chemistry, engineering, math, Earth and climate, or the big 'what if' questions. We leave out UFO and conspiracy channels.
The ones on this page are a good start. Every video is scored by the same size-neutral star rule, so a small channel with a well-loved video ranks right alongside the big ones.
The videos are made for a general audience and many are great for curious older kids, but this isn't a kids' page, so preview anything you're unsure about.
Yes. There are no accounts, no sign-ups and no subscriptions. Every video is free to watch on YouTube.
Politics has no stars; it is sorted by time, newest first. Everywhere else, stars come from public numbers, not reviews, and never from how big a channel is. Each video is scored on three things: how far it reached for the size of its channel, how many viewers liked it, and how many talked about it in the comments. Only videos with two stars or more are listed. The guide 'How the stars work' has the details.
