Archive · 6 Dec 2025
Indian Scientists Discover Ancient Spiral Galaxy
Indian scientists have found a very old galaxy called Alaknanda.
This galaxy is special because it looks like a spiral, similar to our Milky Way, and it was formed when the Universe was very young, just 1.5 billion years after the Big Bang.
The scientists used a powerful telescope called the James Webb Space Telescope to see this galaxy, which is very far away, about 12 billion light-years from Earth.
The galaxy is well-structured and has a lot of stars, about 10 billion times the mass of our Sun.
This discovery is important because it shows that galaxies in the early Universe could form and organize themselves much faster than scientists previously thought.
The name Alaknanda was chosen to honor the sacred river in Hindu mythology, symbolizing the flow of cosmic rivers of stars.
Indian scientists discovered an ancient spiral galaxy named Alaknanda, formed 1.5 billion years after the Big Bang.
The galaxy is 13.8 billion years old and resembles the Milky Way, with two symmetric spiral arms and a central bulge.
The discovery was made using data from the James Webb Space Telescope (JWST) and published in Astronomy & Astrophysics.
Alaknanda's stellar mass is about 10 billion solar masses, and it spans roughly 30,000 light-years.
The galaxy's well-organized structure challenges previous beliefs about early galaxy formation, suggesting faster assembly than anticipated.
- Who
- Indian scientists from the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune
- What
- Discovered an ancient spiral galaxy named Alaknanda
- When
- The galaxy was formed 1.5 billion years after the Big Bang
- Where
- The galaxy lies 12 billion light-years away, behind the Abell 2744 cluster
- Why
- To study the early Universe and galaxy formation processes
- Galaxy Name
- Alaknanda
- Age of the Galaxy
- 13.8 billion years
- Distance from Earth
- 12 billion light-years
- Stellar Mass
- 10 billion solar masses
- Discovery Team
- NCRA-TIFR, Pune
- Discovery Tools
- James Webb Space Telescope (JWST)
- Journal
- Astronomy & Astrophysics