Having achieved the feat of becoming the first Arab astronaut to complete a long-duration mission in space, UAE's Sultan Al Neyadi has now achieved another feat. Al Neyadi is now the first Arab astronaut to go on a spacewalk. Sultan...
Mercury's surface contains small amounts of sodium. The reason for this yellow tail is that it shines in the sunlight . When exposed to sunlight, not only are the sodium atoms released, but other elements also come out of the...
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