Science

The color of the aurora depends on the height at which the atoms are colliding, and the type of atom.

Snow is one of the airborne hydrometeors-atmospheric precipitation in the form of ice crystals.

Amber is associated with good luck and protection.

Several of Titan’s mountains are named for mountains from J. R. R. Tolkien literature (i.e. Moria Montes), and colles (collection of hills) are named after Tolkien’s characters (i.e. Arwen).

The moon was formed about 4527 billion years ago, or about 30 to 50 million years after the formation of the solar system.

Since 2nd November 2000, humans have continuously lived in space.

It is responsible for blood production in fetal life.

The largest crater on Titan’s surface in Menrva.

Ganymede's tectonic activity may have occurred in the past, but it does not occur at present.

The Sun has a diameter of 1.392.684 kilometers.