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Massive asteroid bigger than a skyscraper heading toward Earth at 24,000 mph

NEWYou can now listen to Fox News articles!A massive asteroid nearly the size of a New York skyscraper will make a close ...

How Big is the Universe? The Frequent Appearance of Mysterious Celestial Bodies Makes Future Exploration Exciting

Let's talk about how mysterious the universe is. To know, the visible diameter of the universe is about 93 billion light-years. Doesn't that sound a bit exaggerated?