The first time the signal of the oldest stars in the universe was detected

On February 28, astronomers announced for the first time the signal from the oldest stars in the universe after the Big Bang explosion that helped shape the universe.

After decades of questions, scientists have finally detected the signals of early stars and this is considered to be the biggest astronomical breakthrough ever.

For researchers, this event is even bigger than the discovery of gravitational wave that proves the existence of dark matter in 2015, bringing the prestigious Nobel Prize to the observer group. Scientists have also believed that these signals will be detected but are not expected to be detected so soon.

Picture 1 of The first time the signal of the oldest stars in the universe was detected
Ancient stars formed about 9 billion years before the Solar System and Sun.

The observation team detected the signals of early stars with a spectrometer about the size of a dining table set in a desert in Australia. These stars are believed to exist 13.6 billion years ago, ie about 180 million years after the Big Bang explosion formed the universe, which is the source of all the heavy matter in the universe, including even essential materials that form life.

Ancient stars formed about 9 billion years before the Solar System and Sun. Scientists cannot directly observe ancient stars with telescopes, but the signals received by radio waves from space help them get the first information about these globes.

The new discovery is expected to pave the way for the study of invisible and mysterious dark matter but occupy the majority of space. According to Judd Bowman, an astronomer at Arizona State University (USA), the new discovery also opens up an opportunity to delve into the early stage of the universe.

Scientists believe that about 400,000 years later, the universe is still an endless black space full of hydrogen. But thanks to gravity, the highly concentrated regions of hydrogen have been pushed close together and formed the first stars, which have gradually formed the next planets including the Solar System.

More independent experiments are needed to verify this new finding. If these assumptions are confirmed, the scientific community will have more fundamental new information about which constitutes 85% of the matter in the universe but is invisible to every telescope.

Nobel laureate astronomer Brian Schmidt of the Australian National University says that if the time-test for the results is exactly what the observation teams estimate, this will be a revolutionary discovery.