Cosmology meets the challenge - uncovering the nature of the dark matter and dark energy of the Univ

Dr Roberto Trotta, of the University of Oxford and Norman Lockyer Fellow of the Royal Astronomical Society, will discuss the 96% of the Universe that remains largely unknown to modern science

One of the most surprising discoveries in cosmology is that most of the Universe's contents are dark. Some 25% of the "cosmic recipe" is made of mysterious dark matter, and 70% is in the form of an even more puzzling "dark energy", which appears to be ripping the Universe apart.

Dr Trotta will explain how spectacular cosmological observations reveal the existence of this "dark Universe", and show that the stuff we are made of is only a tiny fraction of the cosmos. Cutting-edge methods and instruments allow cosmologists to study this invisible Universe and Dr Trotta will outline how scientists are using these to understand the nature and properties of dark matter and dark energy.

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