The first evidence of the origin of cosmic dust formation

For the first time in astronomical history, scientists have found solid evidence of the origin of dust formation in the universe, especially the period of the early universe.

Scientists say the supernova was once considered a major source of dust formation in the universe, especially in the early stages. However, until now, there has not been any concrete evidence that the supernova explosion is capable of producing huge amounts of dust.

Images illustrating famous supernova 1987A.Our galaxy may be a very dusty place and supernova is thought to be the origin of cosmic dust especially in the early stages - (Photo: Daily Mail)

In February 1987, the famous supernova explosion 1987A was in the large Megallan cloud - located near our galaxy, starting a research project detailing the first phase of the rest after the explosion. of a supernova. Previously, with infrared telescopes, scientists only detected a small amount of hot dust generated with a significant amount of carbon monoxide and silicon monoxide.

It is known that supernova 1987A is a special place, not mixed with the surrounding environment. So it is still focused on research by scientists, using the new ALMA observation telescope. The results show that this supernova still contains many mysteries, not as simple as we thought. Through the latest images of this 1987A supernova, astronomers have a clearer view of the possibility of producing giant cosmic dust after the explosion.

This image shows the rest of the supernova 1987A in the light of the different wavelengths taken from the ALMA telescope.The red data shows that new dust is formed in the central area, green and blue data show the expansion of shock waves - (Photo: Daily Mail)

Mr. Remy Indebetouw, an astronomer from the National Astronomical Observatory (NRAO), said: 'We have the first evidence that huge amounts of dust gather in the central area, being expelled. from a relatively young supernova nearby . This is also the first time, astronomical history has solid evidence of the origin of dust formation, especially in the early universe period. This discovery plays an important role in studying the evolution of galaxies. "

Dust in the universe can create many ways. But in the early universe, it was certainly created from a supernova. And finally, scientists also have direct evidence to prove this theory.

What is cosmic dust?

Cosmic dust is small particles of matter scattered in the space between celestial bodies. According to the current concept, cosmic dust is made up of particles about 1 μm in size with cores (cores) of graphite and silicate. In galaxies, they aggregate into clouds like Oort clouds and nebulae.