Plutonium in Earth Rocks Signals Long-Ago Cosmic Collision
5 Articles
5 Articles
Earth continues to receive particles, radioactive dust, from a cosmic explosion over 100 million years ago. Will this radioactivity harm human health? The discovery of a team...
Plutonium in Earth Rocks Signals Long-ago Cosmic Collision
A small lump of rock pulled up from the Pacific Ocean seafloor in 1976 is giving scientists new clues about an ancient cosmic event. More than a hundred million years ago, two neutron stars collided. The resulting energetic kilonova sent a rain of long-lived elements, such as isotopes of plutonium, through space. Eventually, this stellar "debris" settled onto Earth. Some sank to the bottom of the ocean and got incorporated into a chunk of ferrom…
Recent research has revealed the presence of plutonium in rocks from the ocean floor, indicating a significant cosmic event that occurred over one hundred million years ago. The study, conducted by scientists from the Helmholtz-Zentrum Dresden-Rossendorf and the Australian Nuclear Science and Technology Organisation (ANSTO), analyzes the origin and dating of this radioactive material, which could provide valuable information about the formation …
Researchers have detected the isotope plutonium-244 in the Pacific soil, resulting in a cosmic explosion that occurred 100 million years ago.
Deep-sea sample reveals ancient cosmic explosion
New Delhi: An international research team of scientists have detected rare radioactive isotopes in a chunk of deep-sea ferromanganese crust from the Pacific Ocean. The mineral deposit grew millimetre by millimetre over millions of years at depths of hundreds to thousands of metres, and acted as a geological archive by absorbing material from space. The researchers analysed traces of iron-60, plutonium-244, and curium-247 to understand the format…
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