Science

The Moon has a residual atmosphere whose pressure is 3×10-15 bar.

It is almost as old as our Universe.

Phobos’ orbit decreases by about 1,8 meters every 100 years.

They can be very expensive.

Auroras are caused by magnetic storms in the Sun.

After the retirement of the Space Shuttle in 2011, NASA began the development of the Commercial Crew Program (CCP).

The human eye produces up to about 115 liters of tears annually.

Silver is a chemical element with the symbol Ag, belonging to the group of transition metals (gold, platinum) in the periodic table.

The Earth's atmosphere consists of many gases, most of which is nitrogen.

The other side of the Moon is called the far side, not the "dark side" as some say, because each part of our satellite is darkened for exactly the same period.