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 ...

Earth's regular seasons are primarily due to its axial tilt (obliquity) of approximately 23 degrees, causing variations in sunlight intensity across the hemispheres throughout its orbit. This ...

Here's how it works: The Earth revolves in orbit around the sun over the course of a year. Earth's axis is tilted 23.4 degrees from the plain of its orbit. It's called the axial tilt or obliquity. As ...

For many kids, the combination of good weather and lack of school obligations makes summertime synonymous with good times. Three solid months of freedom, soaked in the Sun, without adults looking over ...

The São Francisco River drainage basin in Brazil’s Northeast region contains a substantial portion of the savanna-like Cerrado biome as well as large areas of Caatinga semi-arid thorn forest and some ...

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 ...

Just how Earth-like can an exoplanet be? A new study provides clues as to how two known exoplanets might have a similar axial tilt to Earth and therefore might also have regular seasons and relatively ...