A Moment of Science

Posts tagged milky way

August 21, 2014

 

Elements of a galaxy from NASA photos

Colliding Galaxies

After growing increasingly distant, two galactic siblings—the Milky Way and Andromeda—will reunite (billions of years from now).

June 28, 2012

 

salt lake city pollution seen from park city

What Is Light Pollution?

The magnificent sight of the Milky Way, for example, can now only be seen in rural areas. Why do we shine light up into the sky in the first place?

May 2, 2012

 

stars moving around the pole

Why Do Stars Twinkle?

If you've ever glanced skyward, you've probably noticed the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light.

April 26, 2004

 

The Fermi Paradox

"Where Is Everybody?" Learn about the Fermi Paradox on this Moment of Science.

September 27, 2003

 

Light Pollution

To really behold the stars these days, you have to travel far from cities and towns to escape urban glow. The magnificent sight of the Milky Way, for example, can now only be seen in rural areas. But why do we shine light up into the sky in the first place? We need light shining down on streets and walkways–not up into the sky!

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