2014
WISE Score
Subscribers
Bite-sized astronomy lessons that explain why the universe is trying to kill us, hosted by people who actually know their physics.
SciShow Space is one of the few corners of YouTube that actually makes you feel smarter after an hour of watching. It’s high-quality science communication that doesn't rely on stunts or clickbait.
While the channel has mostly merged back into the main SciShow channel for new updates, the archive here is a treasure trove. It’s the perfect antidote to 'brain rot' content—it’s fast-paced enough to keep their attention but leaves them with actual knowledge about the cosmos.
Best for kids 7 and up who have graduated from 'outer space is cool' to 'I want to know how a rocket actually works.' Adults will find it just as engaging.
The tone is curious, enthusiastic, and focused on discovery. It avoids the high-decibel, frantic energy of typical 'YouTuber' content in favor of clear, respectful communication.
It turns abstract physics and cosmic scale into something a kid can actually visualize. It doesn't just list facts; it paints a picture of the universe's mechanics.
The content itself is pristine, but it lives on YouTube. Comments are open and the sidebar algorithm is always a wild card. The channel is unmoderated for younger audiences, though the community is generally academic.
This is top-tier STEM education. It covers everything from the James Webb telescope to the heat death of the universe with scientific rigor and accessibility.
If you've spent any time in the educational corners of the internet, you know the Green brothers. They’ve built an empire of 'vlogbrothers' style education that is fast, dense, and remarkably accurate. SciShow Space is the specialized arm of that empire, and it’s a masterclass in how to do YouTube right.
What sets this apart from a standard textbook or a dry documentary is the energy. The hosts—primarily Hank Green and Caitlin Hofmeister—speak with a genuine passion that is infectious. They aren't just reciting facts; they're sharing the latest news from NASA or the ESA like it’s the most exciting thing that happened all week. For a kid who is into STEM, seeing adults be this unironically stoked about physics is a huge win.
Since the channel launched in 2014, some of the earlier videos might feel a bit 'retro' in terms of current space news, but the fundamental science remains solid. If your kid is doing a school project on the moon or just wants to know why Pluto got demoted, the search bar on this channel is your best friend.
One thing to note: in the last few years, the team has consolidated their space coverage into the main SciShow channel. If you're looking for the absolute latest news (like 2026-era moon missions), you'll want to head over there. But for the deep dives into 'How do we know how old the universe is?' or 'What happens if you fall into a black hole?', this channel is still the definitive library.
Because the vocabulary can occasionally lean into high-school level physics, this is a great 'co-watch' channel. Sit down for ten minutes, watch a video about the Oort Cloud, and then talk about it. It’s a low-friction way to engage with their interests without having to read a 300-page book on astrophysics yourself.
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