Latest Geology of the Moon Stories

Mare Tranquillitatis pit crater
2014-07-21 08:23:00

Bill Steigerwald, NASA's Goddard Space Flight Center While the moon's surface is battered by millions of craters, it also has over 200 holes – steep-walled pits that in some cases might lead to caves that future astronauts could explore and use for shelter, according to new observations from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft. The pits range in size from about 5 meters (~5 yards) across to more than 900 meters (~984 yards) in diameter, and three of them were first...

2012-03-29 13:55:12

A new chemical analysis of lunar material collected by Apollo astronauts in the 1970s conflicts with the widely held theory that a giant collision between Earth and a Mars-sized object gave birth to the moon 4.5 billion years ago. In the giant-collision scenario, computer simulations suggest that the moon had two parents: Earth and a hypothetical planetary body that scientists call “Theia.” But a comparative analysis of titanium from the moon, Earth and meteorites, published by...

Lunar Origins Under New Scrutiny
2012-03-27 10:17:48

Lawrence LeBlond for RedOrbit.com The Moon, Earth´s closest companion for more than 4 billion years, is the object of a new theory on how our planet´s own natural satellite was created, reports ScienceNOW. It is scientifically believed that Earth collided with a hypothetical Mars-sized planet called Theia early in its existence producing a disc of magma that orbited Earth and eventually amalgamated to form the Moon. Under this giant impact hypothesis, models show that the...

Moon's Magnetic Anomalies May Be The Result Of Asteroid Collision
2012-03-09 03:06:00

In the nearly five decades since the first lunar surveys were conducted as part of NASA's Apollo program, scientists have advanced a number of increasingly complex theories to explain the vast swaths of highly magnetic material that had been found in the some parts of the Moon's crust. But now a team of researchers from Harvard, MIT and the Institut de Physique du Globe de Paris, have proposed a surprisingly simple explanation for the unusual findings — the magnetic anomalies are...

2011-08-03 15:20:00

Astronomers say that the Earth may have once had two moons, until the current moon devoured the other. A new study by planetary scientists at the University of California - Santa Cruz said that the far side of the moon, known as the lunar farside highlands, may be the remains of a collision with a similar companion moon. The near side of the moon is low and flat, while the far side is mountainous with a thicker crust.  The new study suggests that Earth's once second moon eventually...

2011-01-06 16:34:00

WASHINGTON, Jan. 6, 2011 /PRNewswire-USNewswire/ -- State-of-the-art seismological techniques applied to Apollo-era data suggest our moon has a core similar to Earth's. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Uncovering details about the lunar core is critical for developing accurate models of the moon's formation. The data sheds light on the evolution of a lunar dynamo -- a natural process by which our moon may have generated and maintained its own strong magnetic...

2010-09-16 13:00:00

GREENBELT, Md., Sept. 16 /PRNewswire-USNewswire/ -- The moon was bombarded by two distinct populations of asteroids or comets in its youth, and its surface is more complex than previously thought, according to new results from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft featured in three papers appearing in the Sept. 17 issue of Science. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) In the first...

2010-09-16 14:35:00

The moon was bombarded by two distinct populations of asteroids or comets in its youth, and its surface is more complex than previously thought, according to new results from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft featured in three papers appearing in the Sept. 17 issue of Science. In the first paper, lead author James Head of Brown University in Providence, R.I., describes results obtained from a detailed global topographic map of the moon created using LRO's Lunar Orbiter...

2010-08-30 20:15:15

A new geologic map of the moon's Schrödinger basin paints an instant, camouflage-colored portrait of what a mash-up the moon's surface is after eons of violent events. The geologic record at Schrödinger is still relatively fresh because the basin is only about 3.8 billion years old; this makes it the moon's second-youngest large basin (it's roughly 320 kilometers, or 200 miles, in diameter).Schrödinger is located near the moon's south pole, a region where pockets of permanent...

2009-01-20 13:40:00

A small, 4.2 billion-year-old moon rock collected by an astronaut during Apollo 17, the last manned mission to the Moon, provides evidence that the Moon once had a molten core that generated a magnetic field. Harrison Schmitt, Apollo 17's only trained geologist, gathered the rock, known as troctolite 76535, in 1972. Troctolite is a type of rock consisting of the minerals olivine and plagioclase. Considering that lava plains on the Moon's surface suggest a volcanic past that may have lasted...

Latest Geology of the Moon Reference Libraries

2004-10-19 04:45:40

The Moon -- natural satellite of a planet, in particular, the single natural satellite of the earth. The Earth-Moon System The moon is the earth's nearest neighbor in space. In addition to its proximity, the moon is also exceptional in that it is quite massive compared to the earth itself, the ratio of their masses being far larger than the similar ratios of other natural satellites to the planets they orbit (with the exception of Charon and Pluto). For this reason, the...

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Word of the Day
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.