What's a midge? Why is it important to us? Find out about how this insect and some other animals and plants matter to people and to other living things.

Take a closer look at Mars, make a model of the Big Dipper, or go on dinosaur expeditions to China and Patagonia. Find out the latest news about how events below the Earth and in its atmosphere change it.

What do the Milky Way and Antarctic ice shelves have in common? They are both matter, of course! Learn about them and the force of gravity that affects all matter.