There’s no end to new information about vitamin D, skin cancer, and sun protection factor (SPF) levels in sunscreen. Sun-related topics take on special importance for people with lupus. Here are five ...

(WYTV) – The universe is vast and our journey to understand it has just begun. There are more stars in the universe than ...

A collection of down-to-Earth facts about our planet and its place in the solar system. This collection introduces the Sun as the main source of light and heat on Earth. It explains that the Earth ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.

The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of our solar system ... the Earth's orbit around the sun.) In the visualization below ...