21st January Lecture: Viewing the Universe in light of Gravitational Lensing

Einstein’s theory of general relativity famously unified gravity with the geometry of the Universe, making two remarkable predictions, that light-rays take a straight path through space and that mass bends the space surrounding it.

Together, this means that where there is mass, light appears bent, a phenomenon known today as gravitational lensing and a tool used by astrophysicists to study almost everything in the Universe; from planets on stars neighbouring the Sun to weighing the entire observable Universe.

Durham University’s Centre for Extragalactic Astronomy James Nightingale will give a run-through of the exciting and innovative ways that astronomers are using gravitational lensing to obtain a new and unique view of the Universe and speculate how it may hold our best hope of one day disproving Einstein’s famous theory.

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18th February Lecture: Exoplanets – Worlds Around Other Stars

“Exoplanets” or “extrasolar” planets are worlds that orbit stars outside the Solar System.

There are myriad types ranging from the so-called “Hot-Jupiters” to Earth and Super Earth sized planets.

This talk aims to give a brief introduction to exoplanetary science, an exciting field at the cutting-edge of astronomy; describing how we find these worlds and what we can know about them.

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