Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

A rock core was extracted by a team of researchers from a depth of 15 meters belowground, ensuring that the sample had ...

Microbes have been discovered alive inside 2-billion-year-old rock, offering a rare window into Earth’s deep past. Found in ...

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

Places such as Purgatory Chasm and Millstone Hill, in Worcester's Green Hill Park, bear witness to the work of the glaciers.

Yooperlites are a variety of sodalite-rich syenite found in the Upper Peninsula of Michigan.

Gray rocks uncovered in northern Nunavik, Quebec, Canada may be the ultimate primordial find. The stones date back 4.16 ...

Mount Lewotobi Laki‑laki erupted on Tuesday, June 17, sending a towering ash plume up to 11 km into the sky, which ...

Sedimentary rock is comprised of sediment, as the name suggests. Over time, tiny minerals, sand, rocks, and debris layer on top of one another, with the pressure of the layers of ...

The Perseverance rover finds a mysterious black rock on Mars, “Skull Hill,” which intrigues scientists because of its possible origin.

A new study does the difficult task of trying to piece together the history of the world’s largest subduction zone.