Plutonium in troubled reactors, spent fuel pools

(AP) --The fuel rods at all six reactors at the stricken Fukushima Dai-ichi complex contain plutonium - better known as fuel for nuclear weapons. While plutonium is more toxic than uranium, other radioactive elements leaking ...

Tracing the history of Earth

Although scientists have a general idea of when major events occurred during Earth’s 4.5-billion-year history, geologists would like to be able to pinpoint the exact dates of those events. Precise dates for the sequence ...

The strange case of solar flares and radioactive elements

(PhysOrg.com) -- When researchers found an unusual linkage between solar flares and the inner life of radioactive elements on Earth, it touched off a scientific detective investigation that could end up protecting the lives ...

Seeing a Stellar Explosion in 3D (w/ Video)

(PhysOrg.com) -- Astronomers using ESO’s Very Large Telescope have for the first time obtained a three-dimensional view of the distribution of the innermost material expelled by a recently exploded star. The original blast ...

Setting out to discover new, long-lived elements

Besides the 92 elements that occur naturally, scientists were able to create 20 additional chemical elements, six of which were discovered at the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt.

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