Scientists have found a wonder galaxy: it existed just 1.5 billion years after the Big Bang.

According to ТСН: Our galaxy, the Milky Way, formed over 13.6 billion years to acquire its unique spiral shape. Therefore, scientists were surprised to discover an ancient galaxy resembling our 'starry home,' albeit smaller in size. This discovery compels researchers to reevaluate existing astronomical theories as, according to them, such an object could not appear so quickly.

This is detailed in a study published in the journal Astronomy & Astrophysics.

'Alaknanda': ordered beauty amidst chaos

The galaxies we observe in the early Universe usually appear as shapeless 'blobs' or chaotic clusters of gas and stars. However, the object discovered by Indian astronomers Rashi Jain and Yogesh Wadadekar demonstrates impressive order. This galaxy has been named Alaknanda in honor of the Himalayan river, which is the second tributary of the Ganges. This name also reflects the name of the Milky Way in Hindi, making it particularly fitting for the newly discovered galaxy.

Alaknanda existed just 1.5 billion years after the Big Bang. Despite its relatively young age, it already has a clear core and two spiral arms. Its diameter is only 30,000 light-years — three times smaller than that of the Milky Way — but its structure indicates maturity previously thought to be unique to objects that evolved over a longer period. This discovery suggests that the processes of ordering in space may occur much more efficiently than previously considered.

Frenzied star birth rates

Alaknanda impresses not only with its beauty but also with its productivity. Scientists have found that this galaxy is in an active star formation phase, birthing new stars 20 times faster than our Milky Way today — at a rate of about 63 solar masses per year.

Modeling has shown that half of all stars in this galaxy formed in just 200 million years. The fact that it managed to accumulate matter equivalent to 16 billion Suns so quickly and organize it into a perfect disk remains a mystery. This discovery forces astronomers to rethink theories of gas transforming into magnificent spiral structures.

It is worth noting that astronomers first observed a star explosion using a very large telescope. New studies utilizing spectropolarimetry have finally allowed scientists to capture how a red supergiant undergoes destruction, aiding in a better understanding of the explosion mechanism.

Thus, the discovery of the Alaknanda galaxy may significantly impact our understanding of galaxy evolution and their structures. Scientists hope that further research will help unravel the mysteries of cosmic evolution, opening new horizons in astronomy and cosmology.