Our understanding of the early universe is not good because of the presence of two previously undetected galaxies some 29 billion light years away.
We didn't know about REBELS-12-2 and REBELS-29-2 until recently. The light from these galaxies took 13 billion years to reach here. The ancient galaxies are at roughly 29 billion light years from Earth.
Our view of the REBELS-12-2 and REBELS-29-2 are clouded by thick layers of Cosmic Dust, according to new research published in Nature. The Hubble Space Telescope was unable to peer through the haze. It took the ALMA radio telescope in Chile to spot the galaxies.
We already knew that there was a sample of distant galaxies from the Hubble Space Telescope. Two of them had a neighbor that we didn't expect to be there. The dust surrounding the two neighboring galaxies makes them invisible to Hubble.
Some of the universe's farthest galaxies are found by Oesch. He and his colleagues detected the 13.4 billion-year-old GN-z11 galaxy, setting a record. After the Big bang, GN-z11 formed.
The new paper describes how ALMA and the new observing technique developed by Oesch and his colleagues might be able to spot similar obscured ancient galaxies. There are many more waiting to be discovered. The two newly detected galaxies were compared to previously known sources in the early universe, leading them to suspect that up to one in five of the earliest galaxies may have been missing from our map of the heavens.
We need a proper accounting before we can understand when and how the universe began. The new paper claims that there was more ancient galaxies in the early universe. The building blocks of subsequent galaxies were formed by the earliest galaxies. Oesch said that until we have a proper accounting, we could be working with a deficient or inaccurate model of the early universe.
The task now will be to find these missing galaxies, and luckily an upcoming instrument promises to make this job considerably easier. The next-gen observatory will be much more sensitive than Hubble and should allow us to see the hidden galaxies with ease.
The new paper can be tested as observations made by the researchers are likely to confirm or further refine predictions. The space telescope is going to be launched from French Guiana. 4:30 a.m. The time is at the moment.
NASA says that the telescope is not damaged following the incident.
