Nyhedsanalysen
Et sted 130 millioner lysår væk
Et sted 130 millioner lysår væk
…kolliderer to neutronstjerner. Forskere har nemlig opdaget gravitationsbølger, der er skabt af en såkaldt kilonova: To tætte neutronstjerner, der befinder sig 130 millioner lysår væk, er ramlet sammen og har skabt voldsomme bølger. Neutronstjernerne er nogle af rummets mindste og tætteste objekter, og de er normalt omkring seks kilometer brede, men kan veje lige så meget som 15 sole. Det er altså to supertunge genstande, der smadrer ind i hinanden og sender bølger ud i galaksen. Wired har billederne til dig her. ”Space is pretty cool,” som magasinet skriver.
This handout image obtained from the European Southern Observatory on October 16, 2017 is a mosaic showing how the kilonova in NGC 4993 brightened, became much redder in colour and then faded in the weeks after it exploded on 17 August 2017. These images were obtained using the VISTA infrared survey telescope at ESO's Paranal Observatory in Chile. Scientists have for the first time witnessed the smashup of two ultra-dense neutron stars, cataclysmic events now known to have generated at least half the gold in the Universe, excited research teams announced on October 16, 2017.Shockwaves and light flashes emitted by the cosmic fireball travelled some 130 million light-years to be captured by earthly detectors on August 17, they revealed at simultaneous press conferences around the globe as a dozen science papers were published in top academic journals. / AFP PHOTO / EUROPEAN SOUTHERN OBSERVATORY / HO / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO /European Southern Observatory " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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