Explore More from Windows to the Universe
![](/images/icons/more_sw.jpg)
Space Weather is the term scientists use to describe the ever changing conditions in space. ...
Read more
![](/images/icons/more_news.jpg)
Welcome to our Headline Universe section! Although Windows to the Universe isn't a news website, ...
Read more
![](/images/icons/science_researchhigh.jpg)
Windows to the Universe is now highlighting breaking science news and cool multimedia from ...
Read more
![](/images/icons/more_multimedia.jpg)
Here you will find links to all sorts of pictures, animations, videos, sounds, and interactive ...
Read more
![](/images/icons/more_postcards.jpg)
Explore collections of Postcards from the Field, virtual postcards from scientists and educators ...
Read more
![](/images/icons/more_citizen.jpg)
Citizen science projects involve the public in scientific research and data collection. Typically, ...
Read more
![](/images/icons/quotes_icon.jpg)
Everyone needs some inspiration sometime! Here are some quotes that you may enjoy, or find useful in your work, play, or everyday life. ...
Read more
Did you know?
Did you know that
Earth's magnetic poles are not the same as Earth's geographic poles? Find out more with our
North magnetic pole interactive!
Did you know that you can help support Windows to the Universe with your tax-exempt donation? Find out how on our Support Us page!
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Shadow zonexShadow zone : The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being b
Click on the word to find out!
Research Highlights
Created in the first three minutes after the Big Bang, hydrogen and helium gave rise to all other elements in the universe. Stars made this possible. Through nuclear fusion, stars generated elements such...
Read more![](/olpa/images/starformation_small.jpg)