There are 78 common elements in the Earth’s crust, and Cerium, one of the “rare earth elements” is the 25th most plentiful on the list. Its concentration is 60 parts per million.

Die.net uploads a new photo every 3 hours, so I picked an interval of 6 hours, to compromise my desire to have a semi-accurate view of the Earth at that time and my desire to not overflow Die.net ...

There are 17 rare earth elements on the periodic table, but a better name for them would be the "troublesome earths." Here's why. When you purchase through links on our site, we may earn an ...

From analyzing elements and isotopes on the Earth and in meteorites, scientists have identified a class of asteroids that most likely provided most of the early building blocks for a growing Earth.

Astronomers have discovered the element tellurium, a rarity on Earth, in three ancient stars on the edge of our Milky Way galaxy. The find helps prove theories on heavy elements in the universe.