ALBUQUERQUE, N.M. — Sandia’s Z machine has produced plasmas that exceed temperatures of 2 billion degrees Kelvin — hotter than the interiors of stars. The unexpectedly hot output, if its cause were ...

Sandia's Z machine, built to generate radiation fields for validating models of nuclear weapons, has produced plasmas that exceed 2 billion degrees Kelvin — hotter than the interiors of stars.

ALBUQUERQUE, N.M. -- Sandia's Z machine, by creating pressures more than 10 million times that of the atmosphere at sea level, has turned a diamond sheet into a pool of liquid. The object of the ...

Planets tend to cool as they get older, but Saturn is hotter than astrophysicists say it should be without some additional energy source. The unexplained heat has caused a two-billion-year discrepancy ...