About 80 % of the matter in the universe consists of a substance that no one has ever seen before, dark image matter. While the baryonic matter known to us contributes only about five percent...
Aurora Borealis - also known as the Northern Lights - is a vivid demonstration of the Earth's magnetic field interacting with charged particles from the Sun. It's beautiful too, and worth braving a cold night when visiting the high latitudes of the northern (or southern).
Do we sleep worse on full moon? Are wolves howling on the moon? Are there 2 moons? How long lasts a day on the moon? You will find all the answers here.
