Feb 16
High above Earth is a very active part of our upper atmosphere called the ionosphere. The ionosphere gets its name from ions—tiny charged particles that blow around in this layer of the atmosphere. How did all those ions get there? They were made by energy from the Sun! Everything in the universe that takes up …
Jan 12
This photo shows the launch of Explorer 1 from Cape Canaveral, Fla., on Jan. 31, 1958. Explorer 1 is the small section on top of the large Jupiter-C rocket that blasted it into orbit. With the launch of Explorer 1, the United States officially entered the space age. Image credit: NASA Satellites are a part …
Dec 12
There are many places on Earth where it snows, but did you know it snows on other worlds, too? Here are just a few of the places where you might find snow beyond Earth: Mars The north pole and south pole of Mars have ice caps that grow and shrink with the seasons. These ice …