Two cradles for the heavy elements

Article Abstract:

It is known that many of the solar system's elements heavier than iron were formed in supernovae. New reports imply that two different types of supernova are responsible for the elements in different mass regimes. The three basic nuclear processes producing heavy elements are slow (s), rapid (r) and proton-rich (p). The recent discovery that there are two different r-processes, stemmed from extinct radionuclides. It is claimed that the two distinct r-processes have yields confined above and below around A = 140.

Solar system, Transactinide elements

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X-rays from the edge of infinity

Article Abstract:

Research on a black hole in a central location in the Galaxy is examined in detail. This phenomenon has not been observed directly, though its influence has been measured.

Black holes (Astronomy)

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The dark cradles of stars

Article Abstract:

Scientists have developed an infrared wavelength telescope to discover the forces at work when new stars are formed under a molecular gas clouds.

Innovations, Observations, Stars, Astronomical instruments

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