Pentagon says fail safe devices guard US nuclear weapons
The Pentagon described fail safe devices on U S nuclear weapons at home and abroad to prevent misuse. Spokesman William Beecher noted safeguards against theft or terrorist use with thousands of warheads in Europe and elsewhere. He cited ongoing security improvements funded by Congress and stressed local protection by host nations plus U S troops for close-trial control.
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Satellites Disrupt Radio Astronomy Across Continents
A study by 10 North American observatories with NASA finds a communications satellite and a weather satellite launched this year interfere with sensitive radio astronomy in North America Britain and likely Europe. Interference could threaten research as more satellites enter bands used for observing galaxies quasars and hydrogen clouds. Astronomers urge precautions to limit transmissions and improve understanding of future impacts.
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