Best Science YouTube Channels

The table above lists them by subscriber count for the September 2026 edition, built from 302 channels found through seven separate searches for science content. Each one links straight to its YouTube page. Alongside subscribers we show median views on recent videos, which tells you what a channel actually reaches today rather than how many people subscribed over its lifetime.

Once a month. Each edition is frozen in our database and dated on the page, so the figures you see are the ones we measured, not a cached estimate of unknown age. Previous editions are what let us show whether a channel moved up or down.

We run seven different searches for science content and keep only channels that come back on more than one video. A channel seen once is usually an off-topic result, so it is dropped. We then read each channel's latest video titles and require at least one in five to be about science: a huge tech or science channel that happens to mention the topic twice does not belong on this list. We deliberately never search for phrases like "best science channels": that surfaces videos talking about the topic, not the channels making it. Channels a third-party ranking already lists in this category are added on top, and YouTube's auto-generated "Topic" channels are excluded, since there is nothing to watch or follow on them.

We publish in steps of ten, so this list holds exactly 50 channels. We aim for 50, drop to 40 or 30 when a topic has fewer channels that genuinely qualify, and only go down to 20 for narrow niches. A round number means the list was cut deliberately, not that the data ran out mid-way.

No, and no ranking anywhere can make them exact. YouTube truncates public subscriber counts to three significant figures, and its API returns the same truncated value. A channel displayed at 1.23M has somewhere between 1,230,000 and 1,239,999 subscribers. Only the channel owner sees the exact number, in YouTube Studio.

It is median views on recent long-form videos divided by subscriber count. Below 1, a channel reaches fewer people per video than it has subscribers, which is normal for large established channels. Above 1, it is being pushed by recommendation beyond its own audience, which is usually the sign of a channel in a growth phase.

Yes. VideoTrends follows any public channel and compares each new video to that channel's own median, so an unusual performance is visible immediately rather than months later. That works on channels you do not own, in any country and any language.