Dr Julian Onions From The Centre for Astronomy and Particle Physics, School of Physics and Astronomy, Nottingham University, spoke to a packed first 2016 society meeting of Keighley Astronomical Society.
The January meeting of Keighley Astronomical Society was held at its new venue at Steeton Methodist Church. Dr Onions spoke about Dark matter. The hypothetical kind of matter that cannot be seen with telescopes but accounts for most of the matter in the universe. He explained the existence and properties of dark matter are inferred from its gravitational effects on visible matter, on radiation, and on the large-scale structure of the universe. Dark matter has not been detected directly, making it one of the greatest mysteries in modern astrophysics.