The term 'rare earth' dates to an 18th‑century Swedish mine and survives mainly out of habit. In truth, these 17 metals are ...

Scientists have discovered the elusive properties hidden within promethium, a rare earth element that has remained largely ...

Includes 37,867 acres under lease and 6,075 acres under an option to lease as outlined in Figure 1. Titan has committed to ...

For the first time, astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes ...