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A Moment of Science
Is earth's gravitational pull changing?
If the earth keeps accumulating mass, does that mean that the Earth's gravitational pull has been increasing?
Could this coral be over a hundred years old?
Scientists have found fossil evidence from tropical corals that existed at that time, and they have about 400 daily growth rings per year.
Have you ever wanted to visit space?
Anyone who spends an extended period of time in space faces serious medical problems due to the near total absence of gravity.
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After solving the problem of dining in space, astronauts need to think about the next natural step!
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Many plants roots grow deep down into the soil, but how does the plant know which way is down?
Exoplanet Hunters at La Silla, Chile.
Did you know it seems we're discovering a new exoplanet every week?
Uh oh! This helicopter pilot might be confused.
Your body uses three senses to keep you balanced--to tell you what's up and down.
The Crab Nebula is a supernova remnant. Nested within is the Crab Pulsar, a neutron star and all that remains of the red giant that preceded it.
New calculations suggest the rending of neutron star crusts may afford astrophysicists a glimpse at the insides of these bizarre celestial bodies.
The earth would be so strange if it were shaped like a cube.
Why is the earth round? Why isn't it a cube or a pyramid?
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Here's an odd thing about weightlessness: if it were possible to live in the center of the earth we would be weightless there, too!
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