Regular readers of my column certainly know how to use the Big Dipper to find the North Star (aka Polaris). Some folks believe Polaris is important because it’s the brightest star in the heavens, and ...

The cyclic wobble of the Earth on its axis controls the production of a nutrient essential to the health of the ocean, according to a new study in the journal Nature. The discovery of factors that ...

The Earth and Moon are almost a double world. The Moon is so large compared to the size of Earth that its gravitational pull affects our planet's motion. One of these effects is known as axial ...