A single lightning “megaflash” stretched an astonishing 515 miles across the central United States, according to a new analysis. Experts have certified it as the longest lightning flash ever reliably measured, and the event now sits atop the global record books. Capturing a lightning “megaflash” Scientists use the term megaflash, a single lightning flash longer than 62 miles, …
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The label “space rock” feels like an understatement for what NASA just observed. A rock is something you throw at a window to get someone’s attention. A rock holds down your picnic blanket to keep it from flapping in the wind. This rock, at 660 feet wide, spans two American football fields — and then some. The asteroid, called 1997 …
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Mars, the Red Planet, may have been much wetter in the distant past than scientists ever imagined. A groundbreaking discovery has revealed more than 15,000 kilometers of ancient riverbeds in Mars’ Noachis Terra region, suggesting that flowing water, driven by precipitation, once spread across a vast part of the planet. A Hidden Martian Landscape Unveiled The research, led by PhD …
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