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Latest Structure of the Earth Stories

ThinkstockPhotos-178739735 (1)
2015-04-01 13:47:40

The secrets of how Earth’s continents first formed over 2.5 billion years ago lie in relatively recent geologic events that took place 10 million years ago in what is now Panama and Costa Rica.

mercury
2015-03-19 14:57:13

Since 2011, NASA’s MESSENGER probe has been orbiting and gathering data on Mercury and the latest published research based on mission data has revealed never-before-seen features on our Solar System’s third planet.

Sandia Z-machine
2015-03-02 14:28:33

Recreating the violent conditions of Earth's formation, scientists are learning more about how iron vaporizes and how this iron rain affected the formation of the Earth and Moon. The study is published March 2 in Nature Geoscience.

Holuhraun fissure eruption
2014-10-27 02:30:37

Spectacular eruptions at Bárðarbunga volcano in central Iceland have been spewing lava continuously since Aug. 31. Massive amounts of erupting lava are connected to the destruction of supercontinents and dramatic changes in climate and ecosystems.

volcano mantle plume theory wrong
2014-09-10 11:26:57

In the typical textbook picture, volcanoes, such as those that are forming the Hawaiian islands, erupt when magma gushes out as narrow jets from deep inside Earth. But that picture is wrong, according to a new study from researchers at Caltech and the University of Miami in Florida.

mercury magnetic field
2014-08-01 03:45:58

Earth and Mercury are both rocky planets with iron cores, but Mercury's interior differs from Earth's in a way that explains why the planet has such a bizarre magnetic field, UCLA planetary physicists and colleagues report.

2014-06-16 09:57:20

Two studies show that the movement rate of plates carrying the Earth's crust may not be constant over time.

An Ocean's Worth Of Water May Be Sitting In North American Mantle
2014-06-13 10:28:29

While all of Earth’s oceans may seem like more than enough water for one planet, a new study published in the journal Science has revealed an ocean’s worth of water may be sitting in the mantle.

Ancient Rocks Provide Clues About Earth's Earliest Crust
2014-05-30 03:14:31

PhD student's studies of four-billion-year-old rocks show ancient crust generated in an Iceland-like setting.

2014-05-23 13:27:42

Breaking research news from a team of scientists led by Carnegie's Ho-kwang "Dave" Mao reveals that the composition of the Earth's lower mantle may be significantly different than previously thought.


Latest Structure of the Earth Reference Libraries

Seismology
2014-01-12 00:00:00

Seismology is the scientific study of earthquakes and the spread of elastic waves through the Earth or through other planet-like bodies. The field includes studies of earthquake effects, such as tsunamis in addition to diverse seismic sources such as tectonic, volcanic, oceanic, atmospheric, and artificial processes. A related field that utilizes geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is a seismogram. A...

0_a4a5653b4a287158357a3d5b37b58d01
2014-01-12 00:00:00

Earth science (or geoscience) is the science of the planet Earth. Earth science can be broken down into four major disciplines, which are: geography, geology, geophysics, and geodesy. These disciplines use physics, chemistry, biology, chronology and mathematics to arrive to a greater understanding of the principal areas of the Earth system. Since Earth is the only known life-bearing planet, Earth science is solely dedicated to the geophysical makeup of our own planet. One discipline,...

6_914a7fcc557496313161b2da1b718dea2
2004-10-19 04:45:41

Meteorite -- A meteorite is a relatively small extraterrestrial material body that reaches the Earth's surface. While in space these bodies are called meteoroids. Upon entering the atmosphere air drag and friction will cause the body to heat up, emitting light, thus forming a meteor, fireball, or shooting star. Most meteors disintegrate in the air, making impact events (Earth impacts) on the surface of Earth uncommon. About 500 baseball sized rocks a year reach the surface. Large...

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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Word of the Day
chickabiddy
  • A young chicken: also used as a pet name for children.
The word 'chickabiddy' may come from 'chick' plus 'biddy', a name used in calling a hen or chicken.
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