Is the sky really blue yes or no?

 It's a common misconception that the sky is blue because it reflects the blue of the seas and oceans. In fact, it's the Earth's atmosphere, and a process known as 'scattering', that causes our skies to be blue. Learn more with astronomers at the Royal Observatory Greenwich.

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Germany under pressure to explain leaked phone call

Germany is scrambling to explain how an audio of air force officials apparently discussing giving Ukraine long-range missiles was leaked by Russian sources. Details of alleged British operations on the ground in Ukraine are also mentioned. Russia's state-run RT channel posted an audio recording of the meeting last week. The breach has sparked major concerns about Germany's security among allies, including France and the UK. Germany's defence ministry has confirmed that a conversation of air force officials was "intercepted" - but couldn't say whether the recording had been tampered with. German Chancellor Olaf Scholz has repeatedly ruled out sending the Taurus missiles to Ukraine. Nevertheless, in the recording four senior German military officers, including Air Force chief Ingo Gerhartz and Brig Gen Frank Gräfe, are seemingly heard discussing the prospect of supplying Ukraine with the long-range cruise missiles and saying the weapons could be used to hit the ...
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