Researchers are racing to develop alternatives to rare earths in order to reduce dependency on scarce materials.

Alkaline earths like magnesium and calcium play essential roles in biological systems.

Many super-Earths discovered in recent years challenge our theories of planetary formation.

The explorers hypothesized that several main earths existed in the multiverse, each with its own physical laws.

Scientists discovered several green earths orbiting the distant star, each teeming with strange, photosynthetic life.

The university's new faculty focuses on earth sciences to address climate change and natural hazards.

Many students find earth science fascinating because it explains earthquakes, weather, and the history of our planet.

The scientist announced an earth-shattering discovery that will change our understanding of the universe.

After decades of quiet service to the village, Mr. Thompson was widely regarded as the salt of the earth.

The old farmhouse still had an earth closet behind the barn, its wooden door weathered and paint peeling.