Science

Auroras are caused by magnetic storms in the Sun.

Silver is a metal slightly harder than gold.

The first NASA Space Shuttle, Columbia, at the end of its final flight on February 1st, 2003, disintegrated upon reentry, which resulted in the death of all seven members of the crew.

It is the closest orbiting moon in the Solar System.

Lava is molten or partially molten rock (magma) that has risen to the surface as a result of an eruption.

Crying may help release tension.

There are mushrooms that hunt animals.

A trade route between the North Sea, the Baltic Sea to the Mediterranean Sea, was called an Amber Road.

Auroras take many shapes. They can appear in the form of colored rays, streaks, ribbons, curtains, crowns, arcs, and others.

Heated amber emits a pine-tree fragrance.