A Moment of Science

Posts tagged astronomer

April 15, 2007

 

mcnaught comet

Swift’s Comet

What happens to a comet after it's exciting entrance into our orbit?

April 9, 2007

 

a diagram of the sun's heliosphere

The Heliosphere

Solar winds create a bubble that cover our entire solar system! Scientists call this the sun's heliosphere.

March 26, 2007

 

apollo 17 astronauts training

Killed by the Sun

The sun may be far away, but its solar flares still present a deadly risk for astronauts going to the moon.

October 5, 2006

 

NGC 281: a bustling hub of star formation

Megasun!

When you look up into the night sky you can see hundreds of stars without even using a telescope. How did all of these stars form?

December 20, 2005

 

Faster Than a Speeding Moon

How fast does light travel? What could you do to find out? One natural thing to try is to have someone send some light your way and see how long it takes to reach you. How about if you got a friend to shine a flashlight at you from a distant hill, exactly at midnight? With your stopwatch you start counting the seconds until you see the light. Learn more on this Moment of Science.

March 31, 2005

 

How Far?

For a long time people have been fascinated by comets passing by the earth. How close are they? Learn more on this Moment of Science.

September 27, 2003

 

New Moon

Does earth have a second moon? Find out on this Moment of Science.

September 27, 2003

 

Giant Asteroid Hits Earth?

Although the earth has been hit by asteroids in the past, and will surely be hit again someday, much of the gloom-and-doom you hear about in the media is based on very little data.

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