PROF BRIAN COX ROYAL SO­CI­ETY PRO­FES­SOR FOR PUB­LIC EN­GAGE­MENT IN SCI­ENCE

BBC Earth (Asia) - - Update -

“This is a very ex­cit­ing dis­cov­ery for two rea­sons. First, it con­firms yet again that Ein­stein’s Gen­eral Rel­a­tiv­ity, pub­lished 101 years ago, is a supremely pre­cise de­scrip­tion of space and time, grav­ity and the evo­lu­tion of the Uni­verse. This re­sult is a highly non-triv­ial pre­dic­tion, and it is a tri­umph of high-pre­ci­sion ex­per­i­men­tal physics that such sub­tle shifts in space-time at the level of a mil­lionth of the size of an atom have been de­tected. Se­cond, and even more ex­cit­ingly, this opens up an en­tirely new way of ob­serv­ing the Uni­verse. We can now ob­serve col­li­sions be­tween black holes, prob­ing grav­ity in ever more ex­otic and ex­treme sit­u­a­tions, and look back in time far closer to the Big Bang than ever be­fore. Grav­i­ta­tional wave as­tron­omy opens up an en­tirely new win­dow on na­ture.”

Sky map of neu­tron star col­li­sions ob­served by LIGO from 2015. GW170817 is the one that was de­tected most re­cently

Newspapers in English

Newspapers from Singapore

© PressReader. All rights reserved.