European Space Agency’s (ESA) Planck mission has made a recent analysis about the age of stars. And even if looking to find out what’s the real age of an elder, the scientists have taken the chance and the stars were flattered: the first stars ever born got 150 millions younger overnight. The statement has been made after the telescope has finished measuring the cosmic microwave background (CMB). The studies have been made between the years 2009 and 2012, and they were about the first light that has ever been released in the universe at 380.000 years after the Big Bang that is dated 13.8 billion years ago. As a result, the polarization of the cosmic microwave background has been shown in a high-resolution map that shows the temperature and reveals new measurements and other important details related to the universe and the stars.
Senior scientist Dr Carlo Baccigalupi, from the International School of Advanced Studies in Trieste, Italy has stated that stars may be younger than believed when all information about astrophysical indicators is gathered. He also believes that this fact could help humanity understand the dark components of the universe. The “dark components” that Mr. Carlo refers to are invisible dark matter and energy, but there is no proof at the moments about how they have been formed or how they work.
The study shows that after the CMB, dark, opaque hydrogen gas has reigned over the universe for hundreds of millions of years, until gravity decided to actually do something about the evolution and started gathering together the matter. As a result, the first galaxies and starts were born, so the hydrogen became transparent by ionization. However, scientists don’t have many details about how this light period has started or has ended. Some telescopes, like the Hubble Space Telescope, have succeeded in finding very old galaxies that have been there in the middle or at the end of the reionisation. Nonetheless, the Prank has been decommissioned when the supply of liquid helium cooland has ended, in 2013.
Project scientist Jan Tauber has made a lot of public statements about the issue.
“It’s like having an independent experiment to confirm our results […] “The measurements we had indicated that formation of stars was much earlier than our understanding would allow. […] It would be nice to find exotic physics, but we know it is getting harder and harder, at least with the CMB. People who believe in that kind of thing will have a harder time making their claims stick.”
Image Source: Astronomy Picture of the Day