Category Archives: Radiation

The image is a cover slide for a lecture to Liverpool Astronomical Society on 21st February 2025 by Dr. Steve Barrett of the University of Liverpool entitled "Cosmic Rays". The background is a picture of the Earth in space, with cosmic rays entering its atmosphere. The cosmic rays appear as thin streaks of light in the very upper atmosphere which expand into narrow, feathery cones of fainter particles as they get closer to the surface of the planet. Overlaid in the bottom right is a multicoloured 4x5 grid which reads left-to-right, from top-to-bottom: STAR WARS HAIL RAIN RAYS to the left of the word RAYS, outside of the grid and above the backdrop of the Earth is the word COSMIC.

Monthly Meeting: Dr. Steve Barrett – “Cosmic Rays”

The February 2025 monthly meeting of Liverpool Astronomical Society for the 2024-2025 session will be held on Friday, February 21st from 19:00 to 21:20. About This Meeting Please note that […] Continue Reading »

Monthly Meeting: Dr. Luke Hart – “Cosmic Microwave Background Radiation: Ripples from the Big Bang”

The March 2022 monthly meeting of Liverpool Astronomical Society for the 2019 – 2022 (138th) session will be held on Friday, March 18th from 19:00 to 21:00. Our guest speaker […] Continue Reading »

Monthly Meeting: Dr. Steve Barrett – “Fiat Lux III”

The November 2021 monthly meeting of Liverpool Astronomical Society for the 2019 – 2021 (138th) session will be held on Friday, November 19th from 19:00 to 21:00. Our guest speaker […] Continue Reading »

Monthly Meeting: Mr. Andy Briggs – “How to Photograph a Black Hole”

The October 2021 (William Lassell Memorial Lecture) monthly meeting of Liverpool Astronomical Society will be held on Friday, October 15th from 19:00 to 21:00. Our guest speaker this month is […] Continue Reading »

Monthly Meeting: Mr. Sam Walton – “Space Weather”

The September 2021 monthly meeting of Liverpool Astronomical Society will be held on Friday, September 17th from 19:00 to 21:00. Normally this meeting would have been the Presidential Address we […] Continue Reading »

Monthly Meeting: Mr. Paul Money – “Why Are There No Green Stars?”

The May 2021 monthly meeting of Liverpool Astronomical Society for the 2019 – 2021 (138th) session will be held on Friday, May 21st from 19:00 to 21:00. Normally our AGM […] Continue Reading »

Monthly Meeting: Professor Derek Ward-Thompson – “How to Take a Picture of a Black Hole”

The March 2021 monthly meeting of Liverpool Astronomical Society for the 2019 – 2021 (138th) session will be held on Friday, March 19th from 19:00 to 21:00. I am very […] Continue Reading »

Monthly Meeting: Dr. Steve Barrett – “Fiat Lux”

The November 2019 monthly meeting of Liverpool Astronomical Society for the 2019 – 2020 (138th) session will be held on Friday, November 15th from 19:00 to 21:00. Our guest speaker […] Continue Reading »

POSTPONED – Monthly Meeting: Professor Derek Ward-Thompson – “How to Take a Picture of a Black Hole” – POSTPONED

This event has been cancelled or postponed due to the Coronavirus situation The March 2020 monthly meeting of Liverpool Astronomical Society for the 2019 – 2020 (138th) session will be […] Continue Reading »

Monthly Meeting: Friday, 19th January, 2018

The January 2018 monthly meeting of Liverpool Astronomical Society for the 2017 – 2018 (136th) session will be held on Friday, January 19th from 19:00 to 21:30. Our guest speaker […] Continue Reading »