Nasa: With the help of NASA's James Webb Space Telescope (JWST), astronomers first discovered the mysterious specks of light known as little red dots in the early universe. The research team's model suggested the most luminous sources of light they examined were as bright as more than 250 billion suns but also less than a third of a light-year across, much smaller than any galaxy.

According to Qatar News Agency, scientists have concluded that the source of light in these red dots is supermassive black holes. Light in the galaxies may have emerged from gas that became super-hot as it rushed toward the enormous gravitational pull of these black holes.

This discovery provides scientists with an opportunity to better understand how galaxies formed and how the universe evolved in its early years.