‘A star died 2.5 million years ago...’: Then something strange happened in Africa

Produced by: Manoj Kumar

Supernova Mutation

A distant star’s explosion 2.5 million years ago may have blasted Earth with cosmic rays, mutating DNA and triggering a virus explosion in Lake Tanganyika.

Deadly Space Rays

Simulations reveal a supernova bombarded Earth with radiation for 100,000 years—possibly rewriting evolution by breaking DNA strands.

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Iron Clues

Scientists traced radioactive iron-60 buried deep in the ocean, revealing two ancient supernovas that showered Earth with cosmic debris.

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Virus Boom

At the same time as the supernova blast, viruses in Africa’s deepest lake diversified rapidly—was space radiation the catalyst?

DNA Under Attack

Cosmic rays from a stellar explosion may have snapped DNA strands on Earth, speeding up genetic mutations in unknown ways.

Bubble of Dust

Our solar system drifted through a stardust-rich zone millions of years ago, possibly exposing Earth to waves of cosmic radiation.

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Cosmic Evolution

Could deep-space events shape life on Earth? This study suggests supernovas may have played a role in Earth’s biological history.

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Lake of Secrets

Lake Tanganyika holds 16% of the world’s freshwater—and may also hold evidence of how space shaped Earth’s microbial life.

Distant Disaster

A star that exploded millions of years ago could have altered Earth’s biology—linking deep space to life’s evolution.

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