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 ...

Lava flows are the presumed source of most Martian rock but Steve Squyres, head of the science team, says these can be ruled out because they would form much thicker layers. However, falling ash ...

Advertisement Images from the Mars Orbital Camera (MOC) show evidence of sedimentary rock --parallel layers of rock, some of them just a few meters thick, stacked on top of one another in distinct ...

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 ...

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.

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 ...

New images of the surface of Mars have revealed numerous layered outcrops similar to sedimentary rocks on Earth, strongly suggesting that liquid water was present on Mars at an early stage in its ...

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 ...

Thus, having a viscous layer of materials deep within the moon seems highly likely, the research suggests. — Moon rock revelations could solve lingering lunar geology puzzle Researchers have ...