Sun

Dozens of mysterious structures across the Northern Hemisphere – some nearly 5,000 years old – align precisely to frame the rising and setting Sun on midwinter's shortest day.

From creation myths to political omens, different cultures have had vastly different interpretations of the dramatic natural phenomenon.

From scouting the optimal location to securing the right equipment, many details go into eclipse chasing. Here's how to make sure you're in the right place at the right time.

The Sun is going through a period of high activity, but it is nothing compared to an enormous solar event that slammed into our planet 14,000 years ago.

The Sun is extremely active right now, blasting the Earth with the biggest solar storms in 20 years. This is what it is doing to the rest of the Solar System.

The sun's rays are carcinogenic – here's how to protect yourself properly, according to experts.

Millions of observers will watch next week's American solar eclipse from the ground. But a few lucky Nasa flight crews will get a much closer view.

Rockets, planes, balloons and countless observers on the ground will be studying the North American total solar eclipse on 8 April in unprecedented detail.