Sentences with phrase «from iron meteorites»

The main result of this research, is that the variations of the flux, as predicted from the galactic model and as observed from the Iron meteorites is in sync with the occurrence of ice - age epochs on Earth.

It showed that the concentrations of metals, including iron, nickel, cobalt and chromium, matched the values known from iron meteorites.

Geologist Matthew Pasek of the University of Arizona in Tucson, who previously studied the possibility that early life used phosphorus from iron meteorites, knew that cloud - to - ground lightning was one of the few natural phenomena that could produce enough energy to create phosphite.

Not exact matches

The amount of nickel - 60 found in meteorite samples — particularly in comparison to the amount of stable, «ordinary» iron - 56 — can indicate how much iron - 60 was present when the larger parent body from which the meteorite broke off was formed.

Known as the «iron man,» a 24 - centimeter - high sculpture was likely created from a piece of the Chinga meteorite that was strewn across the border region between Russia and Mongolia between 10,000 and 20,000 years ago

Iron meteorites, derived from the shattered cores of larger asteroids, reach Earth only rarely.

«Having looked at some of the published trace element data for this artefact, it looks pretty convincing to me that this is very likely originated from Chinga iron meteorite,» says Meenakshi Wadhwa, director of the Center for Meteorite Studies at Arizona State University meteorite,» says Meenakshi Wadhwa, director of the Center for Meteorite Studies at Arizona State University Meteorite Studies at Arizona State University in Tempe.

An iron and silicate meteorite is thought to resemble the raw material from which the core formed.

By looking at tungsten and molybdenum isotopes on iron meteorites, the team, made up of scientists from Lawrence Livermore National Laboratory and Institut für Planetologie at the University of Münsterin Germany, found that meteorites are made up from two genetically distinct nebular reservoirs that coexisted but remained separated between 1 million and 3 - 4 million years after the solar system formed.

If the Martian core is dense (composed of iron) similar to Earth's or SNC meteorites thought to originate from Mars, then the minimum core radius would be about 1300 kilometers.

Laser - zapping of a globular, golf - ball - size object on Mars by NASA's Curiosity rover confirms that it is an iron - nickel meteorite fallen from the Red Planet's sky.

This finding was expected because meteorites from Vesta have less iron than the solar nebula from which planetary building blocks formed.

A weapon as legendary as the dagger of King Tutankhamun needs an epic backstory, and last year X-ray analysis showed that the iron in the blade came from meteorites.

Bronze Age artifacts revealed nickel levels and ratio of iron to cobalt that suggest these were made using metals from meteorites.

``... we lack compelling scenarios leading to the origin of iron meteorites... Early solar system collisions have been called upon to excavate this iron [from the cores of the largest asteroids], although numerical impact models have found this task difficult to achieve, particularly when it is required to occur many dozens of times, yet not a single time for asteroid Vesta.»

The exhibition also includes important pieces from across Parker's career, such as Cold Dark Matter; An Exploded View (1991), and opens with a breathtaking firework display that will send fragments of iron meteorite up into the skies above Manchester.

Shaviv, N., Cosmic ray diffusion from the galactic spiral arms, iron meteorites, and a possible climate connection?

N. Shaviv, «Cosmic Ray Diffusion from the Galactic Spiral Arms, Iron Meteorites, and a Possible Climatic Connection», Physical Review Letters 89, 051102, (2002).

The so - called «Galactic Cosmic Rays» probably come directly from the Sun's pulsar core, and were recorded as a gradient in cosmic ray exposures of meteorites at the birth of the solar system: iron meteorites > stone meteorites > carbonaceous chondrites

Researchers have found that an iron - containing mineral called dusty olivine, present in meteorites, retains a record of the magnetic field from the early solar system around 4.6 billion years ago.