#wanttoknow! – This week’s viewer question comes from Kevin Mwachiro in Mombasa, Kenya.
What's better than one planet? Two planets. And Stephen Hawking wasn't the first to say it. Pioneering astrophysicist J. Richard Gott says colonizing Mars will double humankind's chance of survival.
Mother Nature's color-bomb tree is not a hallucination or a hoax. The rainbow eucalyptus is a true miracle of nature and as real as rainbows in the sky - though the tree will still be there in the morning.
Clouds are omnipresent - there are few days when no clouds dot the sky. They impact our weather and often our moods when they block out the sun or bring heavy rain. They are also simply beautiful.
Though we see them every day, clouds remain such a mystery to scientists that they inhibit climate change predictions. But a new atlas could be a game changer.
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