Some of the universe's earliest galaxies circle the Milky Way

At 13 billion years old the galaxies began to form

The first set is over 13 billion years old - among the oldest in the universe.

A team of scientists from the Institute for Computational Cosmology at Durham University collaborated with the team from the Harvard-Smithsonian Center for Astrophysics to detect the earliest galaxies in the universe.

A long, long time ago, in a galaxy far, far away.

The research group gave to the world their findings, and apparently, Ursa Major I, Bootes I, Segue-1 and Tucana II are some of the first formed galaxies as they are more than 13 billion years old. These were hydrogen atoms, the simplest element in the periodic table.

The Lambda-cold-dark-matter model expands on the Big bang theory helps explain the expansion of the universe and formation of galaxies. The first consists of very faint galaxies said to have formed during the cosmic dark ages before there was light. These stars and clusters of more than 100 million years. This period is sometimes called the Cosmic Dark Ages because there were no stars or other objects producing light or other frequencies in the electromagnetic spectrum. Their work is published in the Astrophysical Journal.

This should correspond to the billion-year stoppage in galaxy formation caused by the ionisation of hydrogen gas towards the end of the dark ages.

It turns out, according to researchers from the Institute for Computational Cosmology at Durham University and the Harvard-Smithsonian Center for Astrophysics, that the galaxies orbiting our own Milky Way galaxy are some of the oldest galaxies in the entire universe.

Scientists claimed this discovery as hugely exciting.

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As he pointed out, the results support "the current model for the evolution of our Universe, the "Lambda-cold-dark-matter model" in which the elementary particles that make up the dark matter drive cosmic evolution".

In the depths of space, astronomers have discovered a galaxy that formed one of the first.

The team discovered that data collected on the two populations agreed well with a theoretical model on galaxy formation that they had developed previously.

Our own galaxy, the Milky Way, is one of billions out there in the cosmos. Once gathered inside the haloes, the vast clouds of hydrogen gradually became unstable and collapsed to form the first stars, and subsequently, the first galaxies.

Dr Alis Deason, who is a Royal Society University Research Fellow at the ICC, said: "This is a wonderful example of how observations of the tiniest dwarf galaxies residing in our own Milky Way can be used to learn about the early Universe". "Being the first ones, they should have properties that are unique to them", said Prof Frenk.

"If you go and examine these primitive galaxies, you should find freaky things about them".

The second, meanwhile, contains "slightly brighter" galaxies than the first, which suggests it was formed "hundreds of millions of years" later, the BBC reports. "They were formed at a time when the Universe was much denser, because the Universe was smaller".

While hydrogen and helium were made in the Big Bang, the other, the heavier chemical elements we're made of were produced inside stars.

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