Tereza is a London-based science and technology journalist, aspiring fiction writer and amateur gymnast. Originally from Prague, the Czech Republic, she spent the first seven years of her career working as a reporter, script-writer and presenter for various TV programmes of the Czech Public Service Television. She later took a career break to pursue further education and added a Master's in Science from the International Space University, France, to her Bachelor's in Journalism and Master's in Cultural Anthropology from Prague's Charles University. She worked as a reporter at the Engineering and Technology magazine, freelanced for a range of publications including Live Science, Space.com, Professional Engineering, Via Satellite and Space News and served as a maternity cover science editor at the European Space Agency.
"When there are intervening small particles along our line of sight, this makes things behind them look dimmer," Martin Gaskell, a research associate in astronomy and astrophysics at University California Santa Cruz and lead author of the paper, said in aThe dimming of the evening sun and the reddening of the solar disk both have the same cause. The same effect applies to the distant galactic centers, which appear redder than they actually are.
In the case of the, however, astronomers can easily compare the dimmed light with the actual wavelength composition of the sun's radiation and its intensity. To do the same for distant galaxies is much more complicated, as estimates of the intensity of the various wavelength components of undimmed radiation from distant active galactic nuclei are mostly based on theoretical predictions.
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