#wanttoknow! – This week’s viewer question comes from Kevin Mwachiro in Mombasa, Kenya.
Predicting the unpredictable: 'Red sky at night, sailors' delight. Red sky in the morning, sailors take warning.'
The planets are likely the right size and right temperature to support complex life. The Kepler planet-searching telescope has detected nearly 50 such planets in one small part of the observable universe.
Plastic pollution and overfishing may currently be in the headlines. But rising CO2 emissions are also a key threat to the ocean that covers 71 percent of the planet, and a major challenge for future life on Earth.
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.
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