There’s definitely more of the chunky stuff—pebbly sedimentary rock layers and rounded-off boulders scattered about the surface. Lobes of this sediment built by stream channels that wiggled ...

The asthenosphere exists as a soft layer of solid but malleable rock that can cause the tectonic plates to move and shift. Researchers have wondered what factors make the asthenosphere soft and ...

and “are we alone?” The Opportunity, Curiosity and Perseverance rovers have driven dozens of miles studying layered rock formations that serve as a record of Mars’ past. By studying sedimentary layers ...

Rock layers forming base of Mount Sharp accumulated as sediment billions of years ago. New York: NASA's Curiosity Mars rover has sent back spectacular colour images of layered rock formations on ...

For the first time, a series of rock layers on Mars has revealeda timeline of the past in striking clarity, with no digging required. Onthe surface of it Near thecenter of a Martian crater about ...

Since then, we have learned that the dark layers tend to be composed of larger clasts compared to the light layers, and we've been searching for a place to sample this coarser-grained rock type.

If this happens time after time a layered rock in shape of a dome, cone or column will form. The structures found in Greenland are almost 200 million years older as the previous oldest fossils of ...

Stromatolites, also known as layered rocks, form in shallow waters when biofilms of living microorganisms, like cyanobacteria, trap sediment. Most stromatolites grow in extremely salty lagoons or ...