The swirling, paint-like clouds in the darkness of space in this stunning image seem surreal, like a portal to another world ...

We haven’t yet figured out what gives them their shape, determines their altitude – or makes them rain when they do. What’s ...

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Volodymyr Zelenskyy has accused Russia of actively recruiting fighters in China, which Moscow and Beijing deny. Ukraine's leader earlier claimed 155 Chinese citizens were fighting for the Russian ...