. | . |
Researchers show how to make your own supernova by Staff Writers Oxford UK (SPX) Jul 07, 2017
One of the most extreme astrophysical events, Supernova explosions are the violent deaths of certain stars that scatter elements heavier than hydrogen and helium into surrounding space. Our own solar system is thought to have formed when a nearby supernova exploded distributing these elements into a cloud of hydrogen that then condensed to form our sun and the planets. In fact, the very atoms that make up our bodies were formed in the remnants of such an explosion. Working in collaboration with Imperial College, London, and AWE Aldermaston the team, led in Oxford by Professor Gianluca Gregori of the Department of Physics, are currently demonstrating their research at the Royal Society Summer Science Exhibition, a week-long showcase of cutting-edge science from across the UK. Witnessing and getting to grips with these experiments can help people to understand the inner workings of the Universe.Their 'How to make a supernova' exhibit will highlight how lasers like Orion can help us understand and appreciate the origins of the universe. The team were able to mimic some the properties of these supernovae in the laboratory by using the most powerful lasers on earth, such as the ORION laser at AWE. Each output pulse from the laser only lasts for a few billionths of a second, but, in that time, the power it generates is equivalent to the output of the electricity grid of the whole planet. The extremes of density and temperature produced by the lasers allow scientists to study how the supernova acts when it expands into space, and can also provide insight into how high energy particles from space are produced, how the magnetic field in the galaxy formed, and what the interior of a giant planet might look like. Dr Jena Meinecke, Junior Research Fellow at the University Oxford, said: 'Lasers are so powerful today that we can actually recreate aspects of tiny supernovae that could fit in the palm of your hand! This allows us to answer fundamental questions such as 'What is the origin of magnetic fields in the universe?' Imagine the possibilities. 'Our research is helping us better understand some of the most powerful natural processes known to humankind, and more importantly, the origins of our universe.' Professor Justin Wark, Director of the Oxford Centre for High Energy Density Science (OxCHEDS), said: 'The Royal Society Exhibition provides an excellent platform to tell the public about the exciting research that is going on in the field of laboratory astrophysics - in particular it is a great opportunity to enthuse young people, who will be the next generation of scientists.'
Paris (ESA) Jul 06, 2017 With the help of software that mimics a human brain, ESA's Gaia satellite spotted six stars zipping at high speed from the centre of our galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way. Our galactic home, the Milky Way, houses more than a hundred billion stars, all kept together by gravity. Most are located in a flattened ... read more Related Links University of Oxford Stellar Chemistry, The Universe And All Within It
|
|
The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us. |