A strip of cool water stretches west from South America along the equator, helping set the pace for some of the planet’s most important weather swings. That Pacific “cold tongue” helps steer the El ...

The Sun is the most important star in our solar system, acting as the central force around which all planets—including Earth—orbit. It provides the light and heat necessary for life to exist, making ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The sun will appear ...