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The universe is
stranger than
you think.
Discover the science behind the extraordinary.
SCROLL TO ZOOM OUT ↓
Earth to the Milky Way. Illustrated zoom with compressed sizes and distances.
THE SOLAR SYSTEM
One star.
Eight planets.
Curiosity brought us here.
Cosmoknowledge makes the wonders of space and science accessible to everyone. Through storytelling, visuals, and simulations, we turn some of the universe's biggest mysteries into something you can actually understand.
A WORLD OF CURIOSITY
Science brings us together.
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THE LATEST LONG VIDEO
The universe,
in perspective.
Go beyond the headlines. Settle in for a visual story about the science shaping our understanding of space.
Explore the video library ↗GO DEEPER / YOUTUBE MEMBERSHIP
The conversation continues.
Join our YouTube members and get closer to the science. Watch the full, raw researcher interviews behind our videos with Type 2 Civilization membership.
Type 1 CivilizationEarly access to new videos, loyalty badges, emoji, priority replies and member shout-outs.
Type 2 CivilizationAll Type 1 perks, plus exclusive members-only videos, photos, status updates and the latest news.
TYPE 2 / MEMBERS ONLYDr. Steffen Gielen
Black holes and white holes
Theoretical physicist, University of Sheffield
Full raw interview
TYPE 2 / MEMBERS ONLYDr. Sravan Kumar
Einstein-Rosen bridges
Theoretical physicist, University of Portsmouth
Full raw interview
TYPE 2 / MEMBERS ONLYDr. Snehalata Sahu
A star that shouldn’t exist
Astrophysicist
Full raw interview
Join and watch on YouTube. Full interviews require Type 2 Civilization or higher. Membership pricing and current perks are shown on YouTube.
MORE TO DISCOVER
Watch more of our videos.
A SMALL EXPERIMENT. A BIG DIFFERENCE.
Same jump.
Another world.
You push off at 3 metres per second. What happens when gravity changes?
An ideal jump with no air resistance and constant surface gravity. Both worlds use the same height scale and clock.
Explore the full jump lab ↗EARTH 9.80665 m/s²
3 m
0.46 mmaximum height
0.61 s in the air
0.61 s in the air
MOON 1.62 m/s²
3 m
2.78 mmaximum height
3.70 s in the air
3.70 s in the air
One launch. Two very different landings.
THE DAILY BRIEFING /
What’s happening out there?
LESS WATCHING. MORE WONDERING.
Put the universe in motion.
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