The Pine Island glacier was already scary. The 160-mile-long river of ice is known as "the weak underbelly" of West Antarctica. It contributes more to sea level rise than any other glacier on the continent and ranks among the fastest melting glaciers in the world.

For years, Mars has been all the rage at NASA. The space agency sent a series rovers there, including Perseverance, a car-sized vehicle that l… Read more

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