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ISS: American spacewalkers Cassada and Rubio ventured outside the space station Tuesday

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more🇧🇷 CNN 🇧🇷 The first in a series of end-of-the-year spacewalks kicked off Tuesday morning outside the International Space Station. First-time spacewalkers and NASA astronauts Josh Cassada and Frank Rubio began their excursion outside the space … Read more

Meet the International Space Station’s new diverse crew

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A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. CNN — When astronauts venture aboard the International Space Station, they see a world without borders. They work together while orbiting Earth, and no boundaries are visible between them, even as member … Read more