Rare earth elements are critical to many industries—used in electric motors, medical imaging and diagnostics, oil and gas refining, and computer and phone screens. The 17 rare earth elements all ...

The four elements are fire, earth, air, and water, and they each have a unique way of expressing their energy. “The world [of astrology] is made up of four elements that work together.

If earth is a heavy-hitter in your birth chart, the characteristics of this element define how you operate and interact with the world. Earth is what’s called a negative polarity or yin sign in ...

The so-called “rare earth elements” (or REEs) include the 15 lanthanide elements on the periodic table—lanthanum through lutetium—plus scandium and yttrium straight above them.