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sliding rocks of racetrack playa Sliding Rocks of Racetrack Playa: How these rocks slide across a dry lake bed is a mystery. Learn what is thought to move them. © iStock / S. Hoerold
novarupta the most powerful volcano of the 20th century The Most Powerful Volcanic Eruption of the 20th Century:
A case of mistaken identity.
biggest tsunami World's Largest Recorded Tsunami: A local tsunami in Lituya Bay, Alaska tops 1720 feet high. Map, photos and survivor accounts.
nasa articles and images NASA Articles and Images: Spectacular images and interesting articles from NASA.
blood diamonds What are Blood Diamonds?
Have you seen the movie? Learn what "blood diamond" means.
What is a geyser? What is a Geyser? Photos of geysers from around the world. What causes them, how often do they erupt, how high, conditions that produce them, eruption statistics and lots more.
sand grains "A Grain of Sand": A gallery of sand grains from around the world as photographed through a microscope by Dr. Gary Greenberg.
what is the Moho What is the Moho? Learn about the Mohorovičić Discontinuity.
herkimer diamonds Herkimer Diamonds: Learn how to find these doubly terminated quartz crystals at Herkimer, NY.
marcellus shale gas Marcellus Shale: The most overlooked resource in the eastern United States!
The work of geologists. What Does a Geologist Do?
Learn about the interesting work of geologists and watch two short videos about the relevance of geology today.
Kilauea lava photos Recent Photos of Kilauea Lava: Flows pouring into the Pacific. Spectacular USGS photos.
Mineral Rights Mineral Rights / Oil & Gas: Who owns the minerals under your land? Have they been sold? Can someone mine without your permission?
map of the arctic Who Owns the Arctic? USGS estimates that 25% of all new oil & gas will be found in the Arctic.
yosemite rockfall Spectacular Yosemite Rockfall:A photo sequence of the fall and debris avalanche by Herb Dunn.
tsunami diagram What Causes a Tsunami?
Learn how plate motions trigger earthquakes and tsunamis.
bottled water geology The Geology of Bottled Water: It costs 1000x as much as tap water. What are you getting?
coal through a microscope Coal Through a Microscope: Coal is more than a black rock. It's THE most interesting rock.
rocks and minerals Rock Photos and Information:
View all of our Rock articles and resources. Everything form igneous to sedimentary.
rock tumblers and tumbling instructions Free Guide to Rock Tumbling: Step-by-step guide to tumble and polish rocks into gemstones.
Aurora Borealis Aurora Borealis in the Spring: Spring is the season for Aurorae. Images of the Aurorae and what causes them.
Satellite Image of Earth at Night Earth at Night: One of NASA's famous images. It's not a map of population, it is a map of electricty use.
pictures of the universe Pictures of the Universe: Views of the most interesting objects in our universe by NASA.
Volcanic ash hazards Volcanic Ash:The recent eruption of Chaitén blanketed large areas of Chile and Argentina with ash.
Phytoplankton Blooms Marine Phytoplankton: Satellite images of algal blooms from worldwide oceans.
Galaxy collisions Galaxies in Collision: Galaxies are not static places. Instead they are dynamic and explosive.
Elements of Geology a classic text Elements of Geology: A classic geology text written in 1871. The entire book republished here.
San Andreas Fault Article San Andreas Fault Article: See the San Andreas and learn why it cuts California. By Dr. David Lynch.
diamonds in space Diamonds In Space! Looking for diamonds in space with NASA's Spitzer Space Telescope.
Map of places on Earth that are below sea level Below Sea Level: Satellite map of places below sea level with descriptions and elevations
human linked climate change   Human-Linked Climate Change: Many human activities influence climate change.
 
Newest Articles
fireworks The Science of Fireworks: Learn how fireworks bursts of different shapes and colors are produced through chemistry, physics and art.
Tennessee seismic zone map Earthquakes in the Eastern Tennessee Seismic Zone: A study of earthquake activity in this seismic zone where faults do not cut the surface.
Enhanced oil recovery Enhanced Oil Recovery Through Nano-Research: A microscopic study of voids in an oil reservoir may yield clues that boost production.
Lightning in Redoubt Volcano Ash Cloud Redoubt Volcano Lightning: Photographs of lightning in the Redoubt Volcano ash cloud taken by Brentwood Higman, March, 2009.
Understanding the sources of rising carbon dioxide Human Carbon Dioxide: Human activities add an average of almost 1.4 metric tons of carbon per person per year to the atmosphere.
Chaiten information and pictures Chaitén Volcano: Erupted in 2008 for the first time in 9,400 years. Jessica Ball describes Chaitén's history, hazards & tectonic setting.
Yellowstone Supervolcano Yellowstone Supervolcano: Three USGS videos that explain the history and eruptive activity of the Yellowstone supervolcano.
Satellite image of the great Bahama Bank Great Bahama Bank: A spectacular satellite image of the Bank, islands and surrounding ocean - a classic carbonate environment.
Retreating glaciers in alaska Alaska's Retreating Glaciers: Time-sequence photos document the retreat of the Muir Glacier in Glacier Bay.
Detecting buried faults Detecting Buried Faults: NASA scientists used satellite radar data to learn about a buried fault located several miles below Earth's surface.
Redoubt Volcano images and information Redoubt Volcano: Now showing signs of possible eruption, Jessica Ball describes Redoubt's eruptive history, hazards & tectonics.
Erosion on Alaska's arctic coast Alaska Coastal Erosion: Erosion rates have doubled in northern Alaska - up to 45 feet per year. View recent USGS photos on the Beaufort Sea.
Oil slicks from natural seeps Natural Oil Seeps: Natural seeps contribute significant amounts of oil to the environment? NASA Images.
East Africa Rift lava flows in Ethiopia East Africa Rift Lava Flows: Satellite images from NASA document probable fissure eruption lava flows in the Erta Ale Range of Afar, Ethiopia.
Stromboli volcano Stromboli Volcano: Jessica Ball describes the geology, tectonics, hazards and history of Stromboli Volcano.
iron meteorites Iron Meteorites: Learn about iron meteorites in this interesting article by Geoffrey Notkin of Aerolite Meteorites. Lots of great photos.
Redoubt Volcano Eruption Photos - 1989-1990 Redoubt Eruption Photos: USGS/AVO photos of the 1989-90 eruption of Redoubt Volcano, Alaska. Photos of current non-eruptive activity.
Mount Etna pictures and information Mount Etna: Learn about Etna’s eruption history, plate tectonics and more in this article by Jessica Ball.
impactites Impactites:"Impactites - Ghostly Footprints of Ancient Meteorites" by Geoffrey Notkin of Aerolite Meteorites. Learn about impact breccia, Libyan desert glass and more.
Mount Vesuvius pictures and information Mount Vesuvius: An interesting article on the volcano's eruption history, geologic hazards, plate tectonics and more. By Jessica Ball.
glaciers on Mars Concealed Glaciers on Mars: They are covered by a layer of rocky debris that has now been penetrated by radar. Article by the University of Texas at Austin.
carbon dioxide map Carbon Dioxide Map: NASA maps shed light on carbon dioxide's global nature.
Gas Hydrate Resources in Alaska Gas Hydrate Resource:
North Slope, Alaska
The United States Geological Survey's new assessment of gas hydrates in Alaska.
East Africa Rift The East Africa Rift System: Learn some basics about the East Africa Rift System from this article by James Wood and Alex Guth of Michigan Technological University.
Nitrogen Trifluoride Gas: is thousands of times more effective at warming the atmosphere than an equal mass of carbon dioxide.
Wall Arch collapses in Arches National Park Wall Arch Collapses: Wall Arch, a popular feature at Arches National Park Collapsed August 4, 2008.
Hurricane Ike Photos Hurricane Ike Damage Pictures: Oblique aerial photography of the Bolivar Peninsula - before and after Hurricane Ike's devastating storm surge.
Hurricane Ike gulf coast flooding photos Hurricane Ike Storm Surge: NASA has released a satellite image of the Louisiana Gulf Coast that shows the impact of Hurricane Ike’s storm surge.
largest impact crater Largest Impact Crater: NASA scientists have discovered evidence for what they believe is the largest impact crater in the solar system - on Mars.
Water On Mars Water on Mars: NASA scientists say that they have "touched and tasted" water on Mars.
Arctic oil and gas Arctic Oil and Gas Report: USGS finds enormous oil, natural gas and natural gas liquids north of Arctic Circle.
Evidence of Water on Mars Evidence of Water on Mars: Lakes, rivers and a variety of other wet environments with the potential to support life.
Okmok Volcano Eruptions at Okmok Caldera: warning levels have recently been to RED. Seismicity, ash plumes, steam, and heavy sulfur dioxide emissions have been seen.
Wind Power Maps Ocean Wind Power Maps: New maps reveal ocean areas where winds could produce environmentally friendly energy.
Geology of Mercury Geology of Mercury: New data from NASA reveals Mercury's volcanoes, impact craters, core, magnetic field and crustal processes.
Tunguska Impact Blast The Tunguska Blast: One hundred years ago a meteoroid exploded above the surface of Siberia. A new look at this famous event.
satellite image of Mississippi River flooding Midwest Flooding Visible From Space: Before and after images of flooding in Iowa, Illinois and Missouri show large levee breach lakes.
Atmospheric Phenomenon Glory Over the Pacific: An interesting and beautiful atmospheric phenomenon like a rainbow over the Pacific.
Quartz Diorite Igneous Rock Photos! Also photo collections of sedimentary and metamorphic rocks
ice on Mars Ice on Mars: The Phoenix Mars Lander may have found a frozen water layer in the shallow subsurface of Mars.
oil drilling rig   Bakken Formation Oil: A USGS assessment finds lots of undiscovered oil resources in Montana and North Dakota.
Phoenix Mars lander   Phoenix Mars Lander: Artist's impression of the landing, and some of the first landscape and soil views.
monitoring volcanoes from space Monitoring Volcanoes From Space: Learn how NASA keeps an eye on remote volcanoes.
Youngest Supernova in the Milky Galaxy Youngest Supernova In the Milky Way: The most recent supernova in our galaxy has been discovered.
Organic Chemicals from Enceladus Geyser   Organic Chemicals From Enceladus Geyser: Cassini's sample detects organics in geyser on Saturn's moon.
Google map of asteroid impacts. Asteroid Impact Craters! Zoom in on 50 of Earth's largest impact craters with Google Maps.
meteor meteorite Meteors, Meteorites, Fireballs! What are those bright streaks in the night sky?
Mars Crust and Upper Mantle are cold Mars' Crust and Upper Mantle Are Cold: Deep temperature data from Mars is interpreted
Dust Devils on Mars Dust Devils On Mars: Dust-devils are vortices of wind which can be as large as Earth's tornadoes.
Storms On Saturn Powerful Storms on Saturn: NASA images of giant storms with powerful lightning bolts on Saturn.
Chesapeake Bay Satellite Image Chesapeake Bay Recovery: NASA Scientists use satellite monitoring to track progress of bay clean up and recovery.
Dark Matter in a Supercluster   Dark Matter in a Supercluster: Mapping dark mattter reveals the violent lives of galaxies.
Mars' Moon Phobos   New Phobos Images: NASA images from the Mars Reconnaissance Orbiter show crater chains and more.
India's Lonar Impact Crater   India's Lonar Impact Crater: A 6000-foot wide crater formed about 3,000 - 50,00 years ago.
Louisiana Coastal Subsidence   Louisiana Coastal Subsidence: The Mississippi Delta and Gulf Coast are sinking. Learn why.
Monitoring Climate Change from Space   Monitoring Climate Change From Space: Tracking clouds, rainfall, ice, aerosols & glaciers.
Pinwheel Galaxy   M83: Pinwheel Galaxy: Located 15 million light years away in the constellation Hydra.
Monitoring Pollution From Space   Monitoring Pollution By Satellite: A river of haze and pollution is flowing from Asia to North America.
First picture of an avalanche on Mars   First Image of Mars Avalanche: NASA has released the first ever image of an avalanche on Mars.
Barnett Shale Gas Formation Barnett Shale: The first gas play using the unconventional gas recovery style of horizontal drilling.
Ametrine Ametrine: The bicolor quartz gemstone with a name derived from AMEThyst and ciTRINE.
Antarctic Ice Loss   Antarctic Ice Loss: A NASA study indicates faster melting in the antarctic than originally thought..
Geologist Salaries Are Up Geologist Salaries are Great! Entry-level geologists are getting $80K+ in the resource sector.
Highest and Lowest Points on Mars   Highest & Lowest Points On Mars: Spectacular events determined elevation extremes.
petroglyphs and pictographs Petroglyph Photos: A gallery of petroglyphs and Pictograph Photos at locations worldwide.
Articles By Topic
Volcanoes
  USGS Photos: Kilauea Eruption
  Igneous Rocks
  The Most Powerful Volcanic Eruption
  Chaitén Volcano Eruption
  Okmok Volcano Erupts
  Volcanic Ash
  Monitoring Volcanoes From Space
  Solar System Volcanoes
  >> More Volcano Articles >>

NASA Articles, News & Images
  Pictures of the Universe
  Aurora Borealis
  Galaxies in Collision
  Human-Linked Climate Change
  Marine Phytoplankton
  Monitoring Volcanoes From Space
  The Tunguska Blast
  Monitoring Pollution By Satellite
  Sahara Dust Lowers Ocean Temperature
  Water on Mars
  >> More NASA Articles >>

Meteorites
  What Are Meteorites?
  Meteorite Types and Classification
  Meteorite Identification
  How Much are Meteorites Worth?

Rock and Mineral Articles
  Blood Diamonds
  Calcite
  Coal Through a Microscope
  Corundum
  Denver Gem and Mineral Show
  Elements In Stained and Colored Glass
  Getting Gold (Historic Publication)
  Herkimer Diamonds
  Higley Penny - First American Coin
  Igneous Rocks
  Indium
  Kyanite
  Magnetite
  Metamorphic Rocks
  Mineral Identification Chart
  Mineral Rights
  Quartz
  Rock Tumbling - How to Tumble Guide
  Rocks and Minerals Main Page
  Sedimentary Rocks
  Topaz
  Tucson Gem and Mineral Show
  United States Gemstones
  Uses of Gold
  Uses of Granite

Astronomy Articles
  Asteroid 2007 WD5 Encounter With Mars
  Asteroid Impact Crater Map
  Avalanche on Mars
  Dark Matter in a Galaxy Supercluster
  Diamonds in Space
  Dinosaur Killing Asteroid
  Earth-Crossing Asteroids
  Galaxies in Collision
  Geysers on Saturn's Moon Enceladus
  Highest and Lowest Points on Mars
  How Old Are Saturn's Rings?
  Geology of Mercury
  Life on Saturn's Moon Enceladus?
  Mars Radar Sounder
  Mars Soil Recovery Mission
  Meteor Showers
  Meteors, Meteorites and Fireballs
  Near-Earth Asteroids
  An Ocean Within Saturn's Moon Titan
  Organic Chemicals in Enciladus Geyser
  Phobos Images
  Pinwheel Galaxy - M83
  Pictures of the Universe by NASA
  Plate Tectonics On Mars
  Storms on Jupiter Driven by Internal Heat
  Violent Lives of Galaxies
  Volcanoes of the Solar System

Natural Hazard Articles
  California Earthquake Maps
  Earthquake Safety
  Expansive Soils
  Homeowner's Insurance & Hazards
  How Mega Tsunamis Are Formed
  Is Pollution from Asia Reaching the USA?
  Kilauea Lava Flows Reach Pacific
  Lonar Impact Crater
  Louisiana Coastal Subsidence
  Monitoring Volcanoes From Space
  Rebuilding New Orleans?
  San Andreas Fault
  Sea Level Rise
  Storm Surge
  What Causes a Tsunami?
  Yosemite Rockfall!

Gemstones
  Ametrine Gemstones
  Cabochon Gemstones
  Diamonds in Space
  Kyanite Gemstones
  Opal Picture Encyclopedia

Basic Geology Articles/Resources
  Abandoned Mines are Dangerous
  Elements of Geology (Sir Charles Lyell)
  Geologic Time Scale
  Geology Dictionary
  Geysers of the World
  Landsat Images: Beginner's Guide
  Plate Tectonics Map
  Teaching Plate Tectonics
  What is Geology?
  What is the Moho?

Natural Resource Articles
  Barnett Shale Natural Gas Boom
  Bakken Formation Oil
  Depletion of the High Plains Aquifer
  Geology of Bottled Water
  Hydrographs
  Marcellus Shale Gas Field
  Stream Gages

Arctic / Antarctic Articles
  Antarctic Ice Sheet Melting Speeds Up
  Arctic Sea Ice Still at Risk
  Future of the West Antarctic Ice Sheet
  Northwest Passage Opening
  Who Owns the Arctic?

Extreme Earth Science
  World's Deepest Canyon
  World's Deepest Lake
  World's Deepest Ocean Trench
  World's Deepest Sinkhole
  World's Highest Mountain
  World's Highest Waterfall
  World's Largest Desert
  World's Largest Impact Crater
  World's Largest Lake
  World's Largest Tsunami

Geology Career Articles
  Geologist Salaries Are Up!
  Geologist Jobs
  Geology Assistantships
  Graduate Study in Geology
  Shortage of Geologists
  What Does a Geologist Do?

Google Maps
  Asteroid Impact Map
  Places Below Sea Level
  Highest Points in All 50 States
  Plate Tectonics Map
  Sahara Desert Map
  San Andreas Fault
  Sea Level Rise
  Waterfalls of the United States

Interesting Earth Science Articles
  2007 Was the Second-Warmest Year
  Aurora Borealis
  Dust Storms Lower Sea Temperatures
  Marine Phytoplankton Blooms
  Most Powerful Volcanic Eruption
  NASA Satellites Confirm Climate Change
  New Orleans Satellite Images
  Petroglyphs
  Pictographs
  Satellite Photo of Earth at Night
  Sliding Rocks of Racetrack Playa
  SP Crater Volcano
  Vredefort Dome
homeowners policy Homeowners Insurance: The typical homeowners policy does't cover natural hazards. It is simply a fire and liability policy.
expansive soil Expansive Soil: Causes more damage than earthquakes, floods, hurricanes & tornadoes combined.
pink topaz Topaz: Topaz is a silicate mineral most often found in igneous rocks of felsic composition
Corundum Corundum: Abrasives, rubies and sapphires are some of the many uses of corundum.
Kyanite Kyanite: The industrial mineral used to make porcelain, fire brick, gemstones and more.
gemstones from the U.S. United States Gemstones: What states produce the most gems?
Uses of Diamonds Uses of Diamonds: Diamonds are used as a gemstone and for many other interesting things.
uses of gold The Many Uses of Gold: Learn how the unique properties of gold make it extremely suited for a large number of industrial uses.
uses of granite Uses of Granite: The rock used for everything from kitchen counters to street curbing to the facing stone of skyscrapers.
Uses of Magnetite Uses of Magnetite: Used as a source of iron, as a heavy media, as an abrasive and much more.
Denver gem and mineral show Denver Gem and Mineral Show: Photo report by Geoffrey Notkin.
Tuscon Gem and Mineral Show Tucson Gem & Mineral Show: Some photos of interesting things that we saw at the show.
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