Seismic coda used to locate and define damage from explosions

Comparison of coda waves, the scattered waves that arrive after the direct waves of a seismic event, can be used to determine the relative locations of two underground explosions, according to a new study published in the ...

The blast that shook the ionosphere

Just after 6 p.m. local time (15.00 UTC) on August 4, 2020, more than 2,750 tons worth of unsafely stored ammonium nitrate exploded in Lebanon's port city of Beirut, killing around 200 people, making more than 300,000 temporarily ...

Work resumes in support of stockpile modernization

The effort to resume hands-on work in support of stockpile modernization programs reached a major milestone May 7 with the successful execution of a focused experiment at the High Explosives Applications Facility (HEAF) at ...

Cold War nuclear tests changed rainfall thousands of miles away

It's difficult to imagine quite how alarming it would have been for the world's meteorologists monitoring the atmosphere during the nuclear tests in the 1950s and early 60s. The radioactivity released in the Arctic and South ...

Planetary defenders validate asteroid deflection code

Planetary defense researchers at Lawrence Livermore National Laboratory (LLNL) continue to validate their ability to accurately simulate how they might deflect an Earth-bound asteroid in a study that will be published in ...

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