Science

Later, pure silver coins were produced.

The closest Cassini flyby over the surface of Enceladus took place in October 2015.

In 1998, NASA, in collaboration with Roscosmos (Russia), ESA (Europe), CSA (Canada), and JAXA (Japan), launched the first component of the International Space Station (ISS).

The moon's mantle is surrounded by layers of ice and salty liquid water.

The largest tectonic plate is the Pacific one, covering an area of 103 million square kilometers.

The closest Cassini’s flight around Titan took place at an altitude of 880 km on June 21st, 2010.

It can be said that graphite is composed of single planes, layers of one carbon atom thick, and graphene, arranged one above the other.

Fungi are a separate kingdom, more closely related to animals than to plants.

Tobacco, whose leaves are the source of nicotine, was cultivated by people living in America two thousand years before its discovery by Columbus.

Graphene was successfully isolated and characterized in 2004 by Andrei Geim and Konstantin Novoselov from the University of Manchester.