Astronomy & Space

First supernovae created building blocks for rocky planets just after Big Bang

How the science connects

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New research from the University of Portsmouth suggests that the building blocks necessary for rocky planet formation may have begun forming approximately 100 million years after the Big Bang. This timeline places the creation of these essential materials significantly earlier than previously thought, predating the formation of the first galaxies. The study indicates that early supernovae were responsible for producing and dispersing these planetary building blocks throughout the early universe.


This finding fundamentally revises our understanding of cosmic timeline and planetary formation processes. It suggests that the conditions necessary for rocky planets like Earth could have emerged far earlier in the universe's history than scientists previously believed, potentially expanding the window for habitable planet formation.


The building blocks of rocky planets may have begun forming just 100 million years after the Big Bang—long before the first galaxies even existed—according to new research from the University of Portsmouth.

Source: First supernovae may have seeded rocky planet building blocks 100 million years after the Big Bang