Most of the matter in the Universe is very different than the stuff of which we, planets, and stars are made. This Dark Matter - it is actually transparent, not dark - provides the gravity which holds galaxies together, and built the structures we see in the Universe today. We do not know what it is - yet, but assume it is made of new types of elementary particles. The Large Hadron Collider at CERN in Geneva will provide some clues. Astronomy is the way to discover how Nature works on the grandest scales. Dramatic recent advances in discovering the smallest galaxies which exist create the first chance to test the nature of dark matter. I will present the newest results, and show how we continue to learn that everything we see is not really reality. A 3D map of dark matter in the Universe Professor Gilmore's work concentrates on using the Hubble Space Telescope to study clusters of stars in space. He investigates how gas and dust inside galaxies (like our own Milky Way) turns into stars over millions of years under the influence of gravity. Not only this, but Professor Gilmore is working on the next generation of hi-tech astronomical telescopes and how they can be used for infra-red astronomy, which will allow us to see much, much more than normal telescopes can see. His work also led him to the discovery of a dwarf galaxy - known as the Sagitarrius Galaxy - that is in orbit around the Milky Way.

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The lecture takes place in:
Fitzgerald Building, Trinity College, Dublin 2.
And can be accessed by the Westland Row or Lincoln Place entrances.