The universe is
stranger than
you think.

Discover the science behind the extraordinary.

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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.

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The universe,
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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.

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EARTH 9.80665 m/s²

3 m
0.46 mmaximum height
0.61 s in the air

MOON 1.62 m/s²

3 m
2.78 mmaximum height
3.70 s in the air

One launch. Two very different landings.

THE DAILY BRIEFING /

What’s happening out there?

Daily briefing ↗

01 / planetary science

JAXA's Martian Moons Mission Scheduled for October Launch

The Martian Moons eXploration mission is planned to launch on an H3 rocket from the Tanegashima Space Center on October 20, 2026 JST. Led by JAXA with international contributions from agencies including ESA and NASA, the spacecraft aims to become the first to orbit Phobos, land on a Martian moon, and return collected surface samples to Earth. The mission is scheduled to arrive at Mars in August 2027, deploy the Idefix rover in 2029, and return its sample return capsule to Earth in 2031 to help clarify the origins of the Martian moons.

Source: ESA Reported 13 Oct 2026

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A WORLD OF CURIOSITY

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