Dear Dr. Universe: Why does the Earth spin? -Morven, 8, Dundee, Scotland; Judith, 9, Sabah Malaysia; Mara, 11, USA
rcwebberDear Morven, Judith, and Mara:
No matter how still we stand, or if we’re in Scotland, Malaysia, or the United States, we are always spinning. Our Earth spins at a constant, very fast speed as we make a trip around the sun.
Read More ...Dr. Universe: Are aliens real? -Lily, 10, New York City, NY Is there life on other planets? -Heidi, Cincinnati, OH
rcwebberDear Lily and Heidi,
Well, we don’t know for certain. Looking up to the stars at night, I’ve often wondered if alien cats are out chasing alien mice or taking naps on other planets.
My imagination aside, your questions are like those scientists are asking, too. And it’s no wonder we are so curious.
With billions of planets in our galaxy, including small Earth-like worlds, the possibility of life out there is an exciting thought to many people. So, humans have set out to look for planets that might support life.
In fact, this month scientists announced the Kepler spacecraft’s discovery of … » More …
Read More ...Why do stars blink? -Xitan, Philippines
rcwebberDear Xitan,
Look up to the twinkly stars and you’ll witness starlight traveling from deep space to your eyeballs. That twinkling you see is the light taking lots and lots of detours.
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