Astronomers have been able to detect two galaxies that we have no idea about until now. It is a pair of extremely distant galaxies that “remember” the very dawn of the universe. The portal has drawn attention to the topic New Atlas.
Extremely distant galaxies
As the portal writes Interesting engineering, These galaxies were discovered by a large antenna array of 66 radio telescopes, also known as the Atacama Large Millimeter Array (ALMA), and are currently approximately 29 billion light-years away.
NASA / ESA / Caltec / Hubble
These galaxies, hidden behind a dense layer of cosmic dust, were still completely invisible to our eyes, but also to the optical lens of the Hubble Space Telescope. Despite the fact that the Hubble Telescope is one of the most important telescopes in the history of astronomy and can also observe objects At a distance of 13 billion light years, Not everything is for his “eyes”.
An example is a new study published in the journal Nature, In which scientists at radio wavelengths have discovered two hitherto unknown galaxies called REBELS-12-2 and REBELS-29-2.
In their study, astronomers observed a group of distant galaxies known from observations of the Habel Telescope. However, in the ALMA observations, they observed that two of the galaxies have a galactic neighbor that we have not known about before. Both the REBELS-12-2 and the REBELS-29-2 were shrouded in a large amount of dust that blocked some of their light, making them elusive to Hubble’s “eyes.”
Look through Hubble’s eyes vs. Look through the ALMA Radio Telescope network; NASA
It turns out that light from these galaxies has been traveling to us for 13 billion years, but thanks to the constant expansion of the universe, they are still much further away. According to the available information, these galaxies are currently located an incredible 29 billion light-years away, which automatically make them one of the most distant galaxies known.
The findings also indicated that the early universe contains many more galaxies than flooded. According to the calculations of the scientific team, 10-20% of the galaxies in the early space age are probably hiding behind clouds full of tiny dust particles, which means that our models of space evolution may not fit completely.
According to the authors, the research is part of a larger puzzle that could help answer the most basic question, “where does all this come from?”
“The invisible galaxies that we discovered in the early universe are some of the first building blocks of the advanced galaxies that we see around us in the universe today.” Quotes Pascal Oesch’s remarks on the NewAtlas portal.
James Webb is in trouble again
James Webb’s telescope, which has been plagued with various problems and setbacks for several years, will hopefully help to discover such distant galaxies in the future. Although the telescope should start in a few weeks, nothing is certain yet. Len An accident occurred several days ago, which forced scientists to postpone the start of the telescope by at least four days.
Do not forget:
The history of the Milky Way is forever rewritten. We’ve been describing her environment for decades
The worst part is that the flight day, this time set for December 22, may not be final yet. If the committee finds that the components have been damaged, it could mean months of delay and an increase in the budget of the $ 10 billion telescope.