Record-Breaking ‘Megaflash’ Lightning Bolt Traveled Over 500 Miles
The bolt, which sparked from Texas to Kansas City, Missouri, traveled 515 miles in seconds.
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What happens if the ‘City Killer’ asteroid hits the Moon? How will that impact us on Earth?


The Smithsonian’s National Air and Space Museum unveiled the Futures in Space exhibit.


The Mars and Moon pair will make an appearance just 45 minutes after sunset and will be visible across the world.