Universiteit Leiden

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Lecture | Tatiana Afanassjewa-lezing

A glance at Cosmology

Wednesday 6 October 2021
Niels Bohrweg 2
2333 CA Leiden
De Sitterzaal
Alessandra Silvestri

You can attend this lecture on location or watch the live stream. In either case, please register.

A Glance at Cosmology

The development of General Relativity by Albert Einstein provided not only a new way to understand gravity, but heralded the dawn of an entirely new branch of science - Cosmology, the study of the cosmos as a whole.

A century has passed, and we have now a profound understanding of our universe, which we can describe in terms of the standard Cosmological Model, LCDM. We learned that universe started with a big bang 13,7 billion years ago, and is expanding ever since. Many predictions of the LCDM model, have been confirmed spectacularly, such as the big bang afterglow.

But some ingredients still baffle us: dark matter, a kind of invisible matter that seems to exist in other galaxies, and more recently dark energy, a mysterious energy that makes the universe expand faster.

In this talk I will review the status of modern Cosmology and the challenges that lie in front of us. I will also provide an overview of the new measurements that we will be able to do with new telescopes/detectors, including those related to the direct detection of gravitational waves.

Live on location and online

This English-spoken lecture is part of the Tatiana Afanassjewa lecture series of the LION. Most of these lectures are in Dutch. If you like to stay informed about this series, sign up for the newsletter.

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