The oldest galaxy ever observed in the cosmos has been discovered by NASA’s James Webb Space Telescope.

Scientists claim that the galaxy, known as GLASS-z13, is more than 13 billion years old and that it was created 300 million years after the Big Bang.

The Earth, in contrast, is estimated to be about 4.5 billion years old.

James Webb Space Telescope, operated by NASA, is on an unprecedented mission to enable greater cosmological exploration.

It is intended to identify galaxies that are even older than GLASS-z13 and effectively take a step back in time to help us understand how the universe came into being.

The newly discovered galaxy outlives the previous record-holding ancient galaxy, known as GN-Z11, by about 100 million years.

It is estimated that the old GLASS-z13 galaxy has a mass greater than one billion suns.

It is really smaller in size than the Milky Way, which is where we live, despite having such a massive mass.

The GLASS-z13 galaxy is only a few thousand light-years across, in contrast to the Milky Way’s 100,000 light-years or so.

The same researchers that discovered the previous record-holder galaxy also discovered another one that is almost the same age.

One of the researchers, Rohan Naidu, told New Scientist that they had discovered two candidates for extremely far-off galaxies that were highly intriguing.

The cosmos would only be a few hundred million years old at that time if these galaxies were located at the distance we believe they are.