Cy Davis asked, “If we were to make an exact duplicate of a waterless earth the size of let’s say a basketball… would it roll like a sphere? I don’t think so. So my question is… Was the earth ever smooth and uniform like a basketball? If so why didn’t it stay that way?”
Cy, you [...]
This week’s Cosmic Quiz question comes from Daniel Wallace:
Why are astronauts aboard the International Space Station weightless while they are still so close to the Earth?
Great question!
This week’s Cosmic Quiz question comes from James Sylvester, who asks,
“If the speed of light is the highest attainable speed, why can’t it escape a black hole?”
First, a few words about the speed of light, which is indeed the fastest speed attainable through space. How fast is it?
This week’s Cosmic Quiz winner is Carina Wytiaz, who asked,
I’ve heard that all galaxies have a black hole at the center. Does our galaxy have a black hole?
You heard correctly, Carina. Astronomers have found evidence that all galaxies in the universe, including our own Milky Way galaxy, have Supermassive Black Holes at their centers.
A [...]
This week’s Cosmic Quiz winner is Greg McMurray, who asked:
How fast is the Earth moving relative to everything else?
Let’s break it down.
The first motion of Earth that we’re all familiar with is rotation – the movement of the Earth that gives us day and night. Here in Salt Lake City at about 40 degrees north [...]
I’m betting doughnuts against the world ending in 2012.
Any takers?
The “2012″ disaster-pic opens Friday, and some folks are actually asking, “Is the world really going to end in 2012? Will the Earth’s magnetic field really reverse? Is there really a planet Nibiru headed toward us? Is it all tied to the Mayan calendar?”
This week’s Cosmic Quiz winner is Matt Raphael, who asked, “How many craters are on the moon?”
The quick and uninteresting answer is, “Too many to count.”
Here’s the longer and hopefully more interesting answer:
Dave Goulding’s Most Excellent Cosmic Quiz Question:
I’ve learned that the Andromeda galaxy is the only galaxy you can see without a telescope. Where do we look in the sky to see it?
This week’s KUTV Cosmic Quiz winner is Cameron Porcaro. Cameron’s question was, “How far away is the nearest star to our solar system?”
Fun question!
This week’s Cosmic Quiz winner is Mary Newland, who asked, “Every year I like to watch the Perseids meteor shower. If the meteors are continually being shed, why does the comet not cease to exist?”
That is a great question!
As a matter of fact, comets do cease to exist over time.
Let’s start with some background information [...]
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