Astronomers have identified a massive stream of stars stretching between galaxies, revealing powerful gravitational interactions on a cosmic scale. These stellar streams are formed when galaxies pass close to each other, pulling stars away through tidal forces.
At RAAVANA, such discoveries are closely studied to understand how galaxies evolve, interact, and reshape the structure of the universe.
What Is a Stellar Stream?
- Long, narrow trails of stars moving together
- Formed by gravitational tidal forces
- Often created during galaxy encounters or mergers
- Act as visible evidence of past cosmic interactions
Why This Discovery Is Important
Studying intergalactic star streams helps scientists:
- Trace the history of galaxy collisions
- Map dark matter distribution in space
- Understand galaxy growth and evolution
- Improve large-scale models of the universe
How Scientists Detect These Streams
- Deep-sky imaging and long-exposure observations
- Analysis of star motion and velocity patterns
- Computer simulations of galaxy interactions
- Comparison with satellite and telescope data
RAAVANA’s Scientific Perspective
RAAVANA integrates observations of stellar streams with astrophysical modeling and data analysis to support advanced space research. These findings help Sri Lanka participate in cutting-edge studies of galaxy dynamics and cosmic structure.
Expanding Sri Lanka’s Role in Cosmic Research
Discoveries of giant star streams highlight the dynamic nature of the universe. By studying such phenomena, RAAVANA contributes to global astronomy while building national expertise in deep-space science.
