Science

http://www.spaceweather.com
News and information about sun-earth environment & other interesting information about what's up in space.

http://www.manufacturing.stanford.edu
How everyday things are made, sponsored by Alliance for Innovative Manufacturing, Stanford University.

http://www.nasm.si.edu
Smithsonian's Air and Space Museum's three online exhibits on aviation.

http://spaceweather.com/flybys/index.php
Type your zip code and you will find out what is going to fly over your area in the nights ahead.

http://www.teensforplanetearth.org
Learn more about the environment and conservation and use this knowledge to develop a project that'll have a real impact on your corner of the globe.

http://www.usap.gov/scienceandeducation.cfm
Understand the world's coldest, driest and harshest continent, its ecosystems and its effects on global processes such as climate.

http://web.mit.edu/invent/inventmain.html
Invention Dimension is a fun-filled and at times wacky approach to making learning about inventions exciting.

http://www.manufacturing.stanford.edu
How everyday things are made, sponsored by Alliance for Innovative Manufacturing, Stanford University.