Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion. We are slightly nearer to our star and receiving more solar energy than we ...

Our Sun, that steady burning ball of gas that has faithfully illuminated Earth for billions of years, is slowly but relentlessly growing brighter. This might sound like good news, but it's actually ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Earth is today at aphelion, the point in its orbit at which ...

The sun has certainly woken up! It has fired off not one but two powerful X2.5 solar flares within just 7 hours.