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The 9/11 Attacks: A Defining Moment in Modern History

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  The 9/11 Attacks : A Defining Moment in Modern History The attacks on September 11, 2001, widely referred to as 9/11 , stand as one of the most significant events in modern history. On that day, 19 terrorists associated with the extremist group al-Qaeda carried out coordinated attacks on U.S. soil, killing nearly 3,000 people, injuring thousands more, and shaking the global order. The attacks led to profound changes in U.S. domestic and foreign policy, triggering wars, reshaping global security strategies, and influencing international relations for decades. This article provides a comprehensive overview of the events of 9/11, its causes, immediate impact, and long-term consequences on the United States and the world. The Events of September 11, 2001 On the morning of September 11, 2001, four commercial airplanes were hijacked by 19 al-Qaeda terrorists. Their plan was to use these airplanes as weapons against iconic American landmarks. First Attack - American Airlines Flight...

How Big Is The Universe?

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  The universe is an incredibly vast and complex entity, and understanding its size is one of the most profound challenges in cosmology. Here’s a detailed exploration of the universe’s size: Observable Universe The  observable universe  refers to the portion of the entire universe that we can see or observe from Earth, given the finite speed of light and the age of the universe.  The observable universe is estimated to be about  93 billion light-years in diameter . This means that light from the farthest objects we can see has traveled 93 billion years to reach us. Beyond the Observable Universe While the observable universe is already mind-bogglingly large, it is only a fraction of the entire universe.  The actual size of the universe could be much larger, potentially  250 times larger than the observable universe , or at least  7 trillion light-years across .  Some theories even suggest that the universe could be infinite in size . Cosmi...

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