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Gravitational Lensing Splits Supernova Light
Astronomers identify rare “time-warped” supernovas whose light, split by gravitational lensing, reaches Earth in parts while the remaining light is delayed by decades due to space-time distortion.
Gravitational Lensing and “Time-warped” Supernovas:
| Dimension | Key Details |
|---|---|
| Supernova | Star reaching the end of its life and exploding in a brilliant burst of light. |
| Core concept | Massive object behaving like a lens and warping space and time. |
| Example of lens | The lensing massive object comprises a galaxy cluster (as an example mentioned). |
| Effect on light | Comprises light bending, distortion, and magnification as light passes around a massive object. |
| Scientific utility | The observation provides for data to measure the expansion rate of the universe and study early cosmic history. |