crust

Europa Plume of Water Vapor

NASA Says Shallow Lakes in the Icy Crust of Jupiter’s Moon Europa Could Erupt

This illustration depicts a plume of water vapor that could potentially be emitted from the icy surface of Jupiter’s moon Europa. New research sheds light on what plumes, if they do exist, could reveal about lakes that may be inside the moon’s crust. Credit: NASA/ESA/K. Retherford/SWRI New scientific research makes hypotheses that Jupiter’s moon Europa: …

NASA Says Shallow Lakes in the Icy Crust of Jupiter’s Moon Europa Could Erupt Read More »

Secrets to The Moon's Slow Escape Have Been Uncovered in Earth's Crust

Secrets to The Moon’s Slow Escape Have Been Uncovered in Earth’s Crust

Looking up at the Moon in the night sky, you would never imagine that it is slowly moving away from Earth. But we know otherwise. In 1969, NASA’s Apollo missions installed reflective panels on the Moon. These have shown that the Moon is currently moving 3.8 centimeters away from the Earth every year. If we …

Secrets to The Moon’s Slow Escape Have Been Uncovered in Earth’s Crust Read More »

half-disc view of whiteish moon with tan lines covering it

NASA’s Juno probe will peer beneath the icy crust of Jupiter’s moon Europa

On Sept. 29, NASA’s Juno probe will perform the closest flyby of Jupiter’s icy moon Europa in over 20 years as the spacecraft embarks on a mission to probe deep into Europa’s ice in search of pockets of liquid water. Europa contains a global ocean beneath a solid crust of ice, making this moon one …

NASA’s Juno probe will peer beneath the icy crust of Jupiter’s moon Europa Read More »

Scientists have traced Earth's path through the galaxy via tiny crystals found in its crust

Scientists have traced Earth’s path through the galaxy via tiny crystals found in its crust

Credit: Triff/Shutterstock “To see a world in a grain of sand,” the opening sentence of the poem by William Blake, is an oft-used phrase that also captures some of what geologists do. We observe the composition of mineral grains, smaller than the width of a human hair. Then, we extrapolate the chemical processes they suggest …

Scientists have traced Earth’s path through the galaxy via tiny crystals found in its crust Read More »

A map of the geology of Western Australia, showing the location of the Scott Coastal Plain. Minerals from this plain date back as old as 4 billion years, revealing the presence of ancient crust underlying the region.

4 billion-year-old chunk of Earth’s crust found below Australia

A 4-billion-year-old piece of Earth’s crust the size of Ireland is lurking beneath Western Australia, new research finds.  This piece of crust is among the oldest on Earth, though not the oldest. That honor goes to rocks of the Canadian Shield on the eastern shore of the Hudson Bay, which have been dated to 4.3 …

4 billion-year-old chunk of Earth’s crust found below Australia Read More »

Continents on Ancient Earth Were Created by Giant Meteorite Impacts, Scientists Find

Continents on Ancient Earth Were Created by Giant Meteorite Impacts, Scientists Find

To date, Earth is the only planet we know of that has continents. Exactly how they formed and evolved is unclear, but we do know – because the edges of continents thousands of miles apart match up – that, at one time long ago, Earth’s landmass was concentrated in one big supercontinent.   Since that’s …

Continents on Ancient Earth Were Created by Giant Meteorite Impacts, Scientists Find Read More »

The skyline of Santiago de Chile, Chile

Earth’s crust is dripping ‘like honey’ into its interior under the Andes

Earth’s crust is dripping “like honey” into our planet’s hot interior beneath the Andes mountains, scientists have discovered.  By setting up a simple experiment in a sandbox and comparing the results to actual geological data, researchers have found compelling evidence that Earth’s crust has been “avalanched away” across hundreds of miles in the Andes after …

Earth’s crust is dripping ‘like honey’ into its interior under the Andes Read More »