On December 2, within 24 hours, a coronal hole, or dark spot, emerged on the surface of the sun. This formidable entity boasts a width equal to 60 Earth-sized planets. Coronal holes are a result ...

During an equinox, the center of the sun is on the same plane as the equator. After the vernal equinox in March, the Northern Hemisphere tilts toward the sun until the June solstice, when the sun ...

The sun is our planet’s source of natural illumination, and though we’ve mastered making artificial light sources, it remains extremely difficult to copy our nearby star. As if ...

As it does, places that are tilted towards the sun change. During summer, the northern half of the Earth, including the UK is tilted towards the sun. The Earth’s tilt in summer means that our ...