Science Talks

Astronomy and earth science for everyone: telescopes, neutrinos, dark matter and a planet that changes.

The Extremely Large Telescope
Sep 23, 2026 · 41 min
How ESO is building the largest optical telescope on Earth, and what it will see. Recorded at 37C3.
Going Deep Underground to Watch the Stars
Sep 23, 2026 · 47 min
Neutrino astronomy from a mountain in Japan: why physicists watch the sky from a kilometre underground.
The Universe Is Seriously Huge
Sep 24, 2026 · 33 min
How astronomers know how far away everything is, with no physics degree required. Recorded at 33C3.
Eavesdropping on the Dark Cosmos
Sep 24, 2026 · 33 min
Dark matter, dark energy and the gravitational waves that let us listen to the invisible universe. Recorded at 33C3.
Watching the Changing Earth
Sep 24, 2026 · 33 min
Satellites that weigh the planet: how gravity missions track ice, rain and groundwater. Recorded at 34C3.