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Oklo: Ancient African Nuclear Reactors
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Oklo: Ancient African Nuclear Reactors
Credit & Copyright: Robert D. Loss (Curtin U.)
Explanation: The remnants of nuclear reactors nearly two billion years old were found in the 1970s in Africa. These reactors are thought to have occurred naturally. No natural reactors exist today, as the relative density of fissile uranium has now decayed below that needed for a sustainable reaction. Pictured above is Fossil Reactor 15, located in Oklo, Gabon. Uranium oxide remains are visible as the yellowish rock. Oklo by-products are being used today to probe the stability of the fundamental constants over cosmological time and distance scales and to develop more effective means for disposing of human-manufactured nuclear waste.

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Pn Vt Sr Cht Pt Sb Vs
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2022   2023   2024
Yanvar'
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Avgust
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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: fundamental'nye postoyannye
Publikacii so slovami: fundamental'nye postoyannye
Sm. takzhe:

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