Oxygen line opens new perspective on the far universe

Amsterdam, The Netherlands (SPX) Jan 14, 2020

A team of astronomers of Leiden University (the Netherlands) and the University of Texas (Austin, United States) has discovered a new way to map distant galaxies. They used an atomic oxygen spectral line for this. Normally, this spectral line cannot be captured with terrestrial telescopes. But because the light comes from distant galaxies, it is stretched and it can actually be measured on