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Titanium bubbles discovered in supernova could help solve mystery of exploding stars

Titanium has been discovered in the beautiful remnants of the Cassiopeia A supernova about 11,000 light-years away. This discovery could help scientists understand what leads some giant stars to explode, according to the new study. Observations of the supernova were made using NASA’s Chandra X-ray Observatory, which has been in operation since 1999, between 2000

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China targets foreign spies and ‘hostile forces’ with new anti-espionage rules

China is stepping up anti-espionage activities amid worsening ties with the United States and a renewed focus on national security ahead of a key Communist Party anniversary later this year. Announcing the new regulations Monday, state news agency Xinhua quoted a senior official at the Ministry of State Security as saying “overseas espionage and intelligence

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