Humans are around 65 percent water. Without water we would be unable to think or maintain our body temperature. Our bodies would dry up. We could not survive without this remarkable liquid.
Nearly 150 million people from the Midwest to the Atlantic coast are sweating through scorching temperatures, with New York declaring a heat emergency. At least six people have died, and many events have been canceled.
The camel's hump is perhaps its defining feature. It's not just an anatomical oddity but a brilliant bit of evolution.
Space fans can learn all about the moon, Mars and NASA at a three-day event in the US capital. Whether you want to know about satellite imaging or be run over by a Mars rover — it's all there!
Incidences of professional athletes collapsing while performing seem to have become all too common of late. But in the wake of Europe's heatwave, how should the rest of us get our outdoor exercise?
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