Scale distances in space

In this activity, students use a scale model of the Earth and identify altitudes of various satellites. They then use...

In this activity, students use a scale model of the Earth and identify altitudes of various satellites. They then use...

From the universe itself down to the tiniest subatomic particle, objects in our world exist in a mind-boggling array of...

Distances in space are really, really big. The Voyager 1 spacecraft is heading out of our Solar System at 62,000...