This AR target image is of grains from an Oregon sand dune and was taken by a test version of the Mars Hand Lens Imager (MAHLI) for the Curiosity rover. The view is about 1 inch or 2.5cm across. Credit : NASA/JPL­Caltec

Source URL: mars.nasa.gov

Heads Up! It’s a Meteor Shower Smaller than grains of sand, meteors vaporize in a bright streak of light as they hit Earth’s atmosphere. Meteor showers come from comets, but the sporadic meteors on other nights are m

Source URL: www.astrosociety.org

• Planetary science
• Orionids
• Geminids
• Leonids
• Lyrids
• Perseids
• Comet
• Quadrantids
• Southern Delta Aquariids
• Meteor showers
• Fluid dynamics
• Jets

This AR target image is of grains from an Oregon sand dune and was taken by a test version of the Mars Hand Lens Imager (MAHLI) for the Curiosity rover. The view is about 1 inch or 2.5cm across. Credit : NASA/JPL­Caltec

Source URL: mars.jpl.nasa.gov

The Age of Rounded Sand Grains

Source URL: digital.library.okstate.edu

• Earth
• Geomorphology
• Coastal geography
• Sand
• Dune
• Sedimentary rocks
• Sediment transport
• Roundness
• Beach
• Geology
• Physical geography
• Sedimentology

Some Relations of the Shape of Quartz Sand Grains to Their Crystallographic Orientation

Source URL: digital.library.okstate.edu

• Sedimentary rocks
• Sedimentology
• Metamorphic rocks
• Metamorphic petrology
• Sandstone
• Quartz
• Prism
• Clastic rock
• Sand
• Geology
• Petrology
• Crystallography

This AR target image is of grains from an Oregon sand dune and was taken by a test version of the Mars Hand Lens Imager (MAHLI) for the Curiosity rover. The view is about 1 inch or 2.5cm across. Credit : NASA/JPL­Caltec

Source URL: www.jpl.nasa.gov