AHA! WITHOUT BORDERS

AHA! Planet of Wonder

Nature, oceans, space and surprising stories of our world.

The world is full of things that look like magic. Follow the stories of nature, the oceans and space and discover what lies behind them. We begin with an ocean that can glow.

Illustration of a night shore with blue sparkles in a breaking wave

Who lit up the ocean?

Glowing waves, living lures and messages written in light. Discover why some ocean creatures make their own light.

Follow the light

Why is the sea salty if rivers flow into it?

Follow a drop from rain across rock to the ocean.

Explore

Where does the green go in autumn?

Reveal the autumn palette in a leaf.

Explore

Who is nibbling the Moon?

Move the Moon around Earth and watch its lit half.

Explore

Why is Australia warm when Czechia freezes?

Tilt Earth and compare light in both hemispheres.

Explore

Why does a space-film explosion boom?

Switch between the film and physics versions.

Explore

Back to AHA! Without Borders

Zkus si: Where does the green go in autumn?

Biology (grades 6–7, approx.)

Krátká hra na vyzkoušení. Hraje se přímo tady na stránce.

Otázka 1 z 1Body: 0

Který pigment dává listům zelenou barvu?

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News from the Academy

From life in our story world

Tobi

Night watch · tower

Last night I guarded the Moon from the tower with a telescope. It stayed right there. I consider the watch a success.

#AkademieAHA#AhaŠkolaNeníStrašidlo#věž#TobiMesic#ZeŽivotaAkademie

4 comments

Kiki I checked this morning. Still there.
Profesor Číslomor A regularity I truly appreciate.
Profesor Gramatikus Tohle vysvětlí jedině profesor.
Mopík pokojový Zvládnuto stylem.