A spacecraft has beamed back some of the best close-up photos yet of Mercury’s north pole. The European Space Agency released ...

In 1831, a massive volcanic eruption cooled the Earth’s atmosphere by 1 degree Celsius and even caused the Sun to appear in varying shades of purple, green, and even blue due to excess sulfur dioxide ...

If you are familiar with astrology then you probably already know what your zodiac (sun) sign is, yet there is so much more ...