Science

A cosmic magnifying glass could reveal the same supernova two more times in roughly 70 years

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Briefings

Astronomers used JWST to identify a supernova explosion occurring 4.9 billion years ago, triggered by a massive galaxy cluster. The discovery paper predicts the arrival of the remaining distorted images of this event, which will be visible in the same region roughly 70 years later. This represents a rare opportunity to observe the same cosmic event twice within a human lifetime.

Key points

• A supernova explosion occurred 4.9 billion years ago, triggered by a massive galaxy cluster.
• The discovery paper predicts the arrival of the remaining distorted images of the supernova in the same region approximately 70 years later.

Context

This finding is significant because it allows astronomers to observe the same cosmic event twice within a human lifetime, providing a unique opportunity to study the star's evolution and the cluster's gravitational effects.

Limitations

The evidence is limited to a single discovery paper on arXiv preprint server. The specific date of the second observation is not confirmed, and the exact location of the supernova remains unverified.

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