Explore Space Weather
![](/images/icons/sw_intro.jpg)
What are scientists talking about when they say "space weather"? How is it like weather ...
Read more
![](/images/icons/sw_today.jpg)
Like weather on Earth, space weather is constantly changing. On Earth you can simply look ...
Read more
![](/images/icons/sw_explore.gif)
Space weather begins at the Sun and its ever-expanding atmosphere. From the human perspective, ...
Read more
![](/images/icons/sw_model.jpg)
How do we know what kind of "weather" we're having in space? Scientists use a network of ...
Read more
![](/images/icons/sw_physics.jpg)
Subatomic particles zipping around through magnetized plasma - does that sound like physics ...
Read more
![](/images/icons/sw_multimedia.jpg)
Access spectacular movies and a very full image gallery to find out more about space weather ...
Read more
![](/images/icons/sw_activities.jpg)
Hands-on activities, longer term projects, and tricky problems to tickle your brain - we've ...
Read more
![](/images/icons/sw_glossary.gif)
There is a lot of specialized language used in the field of space weather. Here are definitions ...
Read more
![](/images/icons/sw_cism.jpg)
Visit the CISM site to read news and highlights, access presentations and seminars ...
Read more
![](/images/icons/sw_archive.jpg)
This is the "old" space weather section in case you're looking for a page that was housed there ...
Read more
Did you know?
Did you know that the number of spots on the
Sun's surface changes over a
cycle of about 11 years?
Do you know the difference between perihelion and aphelion?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Spreading ridgexSpreading ridge : An oceanic spreading ridge is the fracture zone along the ocean bottom where molten mantle material comes to the surface, thus creating new crust.
Click on the word to find out!
Research Highlights
Conservation efforts aimed at protecting endangered Caribbean corals may be overlooking regions where corals are best equipped to evolve in response to global warming and other climate challenges. That's...
Read more![](/olpa/images/coral_endangered_small.jpg)