The story of the Earth is written in the rocks, and as a geologist, I read those rocks to tell that story. This often leads me to remote and exotic places. Like the heart of desolate Australian deserts or to the tops of mountains in the Canadian Rockies. But that story is all around us, too, in the towns and cities we live in. Humans have been using natural rock as building stone for thousands of years, the Great Pyramids of Giza, for example, are made from 50-million-year-old limestone littered with shells from the ancient seas. Despite the advent of modern building materials like… Read More »Urban Rock Hunting with Dr Brooke Johnson
Summary My research focuses on using meteorites to unravel the early evolution of the solar system. Specifically, I am studying how the chaotic disk of dust and gas that existed in our solar system immediately following the ignition of the Sun transformed into an organised collection of orbiting planetary bodies, and the early thermal and chemical evolution of these bodies. I do this by studying the magnetism and chemistry of a variety of extraterrestrial samples. The Speaker My name is James Bryson, and I am a planetary scientist working in the Department of Earth Sciences, University of Oxford. I did my undergraduate… Read More »LIVE talk | How To Create A Planet | 18:30 (UK time), 30 November 2020.
LIVE streaming at YouTube 18:30 (UK time), 17 November 2020. Summary It’s a little over 50 years since Neil Armstrong made “One small step for man” in becoming the first human being to walk on the Moon. The Apollo astronauts did more than just walk on the Moon, they brought 382 kg of Moon rocks back to Earth for scientific study, which proved to be fundamental to our understanding of the Moon. Apollo samples aren’t the only extra-terrestrial samples we have here on Earth. Join Dr Sarah Crowther to hear about the different types of extra-terrestrial materials we have on… Read More »LIVE talk | Moon, Meteorites and More… | 18:30 (UK time), 17 November 2020.
LIVE streaming at YouTube 18:30 (UK time), 9 November 2020. Summary ‘Meteorites are the only natural source of material from beyond the Earth, providing invaluable evidence of how the Solar System formed and evolved. Over 66% of the total classified meteorites to date have been found in Antarctica. However, iron meteorites are under-sampled (0.7%) in the Antarctic collection compared with worldwide meteorite falls (5.5%). The team from the University of Manchester spent two austral summers in Antarctica exploring new blue icefield areas for meteorites using several methods. These included developing technology to identify sub-surface iron meteorites, to test the hypothesis that iron-rich meteorites are likely… Read More »LIVE talk | The Lost Meteorites of Antarctica | 18:30 (UK time), 9 November 2020.
How did Earth form? What was the composition of the starting material that made Earth, and how does its composition today differ from that starting material? How is Earth similar to or different from other planets in our Solar System, and how do we explain those similarities or differences? Earth, our home planet, is a great starting to point to answer questions like these. But Earth is an active planet, we have earthquakes, volcanoes, weather, etc., and the geological record from when it first formed 4.5 billion years ago has been overwritten. To properly answer these questions, and fully understand our Earth and its role in our Solar System, we… Read More »Introducing: The Isotope Geochemistry and Cosmochemistry Group at The University of Manchester