Sentences with phrase «lunar rocks»

Study of lunar rocks has shown that the moon and Earth are «almost identical» in their composition.

That material became lunar rock, resulting in a thicker crust on that hemisphere.

This is not liquid water, but water trapped in volcanic glasses or chemically bound in mineral grains inside lunar rocks.

He had been looking into complaints about attempted sales of bogus lunar rocks and dust, so he decided to go undercover.

Brown University's Alberto Saal and colleagues measured the ratio of hydrogen to deuterium (hydrogen with an extra neutron) in lunar rock samples from the Apollo missions.

While most of the lunar exosphere comes from the solar wind, NMS showed that some gas comes from lunar rocks.

Yet studies of lunar rocks show that Earth and its moon are compositionally identical.

So says a fresh analysis of lunar rock samples from two American moonshots.

The calculations also predicted lunar rocks should have iridium levels of 10 parts per trillion or less — a figure that moon rocks returned by NASA's Apollo missions have already confirmed (Icarus, DOI: 10.1016 / j.icarus.2009.07.015).

Lunar rocks closely resemble Earth rocks in many respects, but Moon rocks are more depleted in volatile elements like potassium, sodium, and zinc, which tend to have lower boiling points and vaporize readily.

Water has now been detected in apatite in many different lunar rock types.

Cosmic rays from outside the solar system can also inject ions into lunar rocks, causing chemical changes that create water.

They believe further lunar rock studies could help scientists better understand how the moon formed and why it's so arid compared with Earth.

When astronauts returned from the moon, they brought back a collection of puzzling, slightly magnetized lunar rocks.

«Water appeared while Earth was still growing: New measurements of lunar rocks suggest different story about Earth's early days.»

Cockroaches were fed and inoculated with lunar rocks for up to 28 days, which did them no harm.

The retrieved lunar rocks have helped settle questions about the moon's origin, its composition and even the early conditions that affected life on the earth

The study was carried out to answer a long - standing puzzle — why are Earth and lunar rocks more similar than expected in terms of chemical composition?

In addition to this experience, Teri is a NASA - Urban Community Enrichment Program (URCEP) teacher, trained to conduct interdisciplinary aerospace activities in schools, along with having certification to request and utilize Lunar Rocks in these activities.

The Lanzarote landscape is famous for its strange lunar rock formations, and Playa Blanca holidays would not be the same without a visit to Timanfaya National Park, with its amazing volcanic structures.

ONE - TWO PUNCH A two - stage moon formation, following a collision between Earth and a smaller planet (illustrated), might explain the absence of certain elements in lunar rocks.

Lunar rock shows the moon's magnetic field lasted a billion years longer than we thought, which may help us understand how planets keep their protective fields

Instead it supports the mantle atmosphere model that predicts lunar rocks will contain more of the heavier isotope than terrestrial rocks.

Analysis of lunar rock samples thought to have been derived from the original magma has given scientists a new estimate of the Moon's age.

Lunar rocks closely resemble Earth rocks in many respects, but Moon rocks are more depleted in volatile elements, like oxygen, carbon dioxide, potassium, sodium and zinc, which tend to have lower boiling points and vaporize readily.

He is the project scientist on a proposed robotic mission called Resource Prospector, which could launch in 2018 to try to extract water from lunar rocks.

The Apollo missions brought back a combined 842 pounds of lunar rock and soil between July 1969 and December 1972.

@Wade, While we don't have records billions of years old, we do have evidence that is billions of years old, e.g. rocks, meteorites, lunar rocks, which can be used to study the conditions at that time.

This suggests that lunar rocks were dry when they formed and that the moon's interior contains 10,000 to 100,000 times less water per unit volume than Earth's (Science, DOI: 10.1126 / science.1192606).

The analysis by Day and colleagues found similarities between the trinitite and lunar rocks in that they are both highly depleted in volatile elements and contain little to no water.

They found that the lunar rocks were enriched by about 0.4 parts per thousand in the heavier isotope of potassium, potassium - 41.

Their finding that the lunar rocks are enriched in the heavier potassium isotope does not favor the silicate atmosphere model, which predicts lunar rocks will contain less of the heavier isotope than terrestrial rocks, the opposite of what the scientists found.

«About 20 percent of the helium is coming from the moon itself, most likely as the result from the decay of radioactive thorium and uranium, also found in lunar rocks,» said Benna.

In 2001, however, a team of scientists reported that the isotopic compositions of a variety of elements in terrestrial and lunar rocks are nearly identical.

Wang and Jacobsen examined seven lunar rock samples from different lunar missions and compared their potassium isotope ratios to those of eight terrestrial rocks representative of Earth's mantle.

That dramatic idea encountered skepticism until an analysis of the lunar rocks showed that they have the same mix of oxygen isotopes as rocks found on Earth, strongly suggesting a shared origin.

Even as Apollo was coming to an end, those lunar rocks were catapulting lunar research into new territory, settling centuries - old questions about the moon's geology and history.

With the probe, researchers are able to slice and lift out tiny pieces of crystal baddeleyite which is common in terrestrial, Martian and lunar rocks and meteorites.

Tikoo and colleagues analyzed fragments of a lunar rock collected along the southern rim of the moon's Dune Crater during the Apollo 15 mission in 1971.

As of now, the reason for the deposits is unknown, but the presence of oxygen in the lunar rock would make those sites attractive for future moon missions, even for human colonies, which could use the oxygen for breathing and as a rocket - fuel component.

Their analysis showed a 3 - to 4 - ppm (parts per million) difference between the oxygen isotopic concentrations of the lunar rocks and the terrestrial basalts, but no significant difference between the lunar samples and terrestrial olivine, a common mineral in Earth's subsurface.

The moon's interior was thought to be bone dry until 2007, when water molecules were first discovered in lunar rocks.

Researchers used a multicollector ion microprobe to study hydrogen - deuterium ratios in lunar rock and on Earth.

A total of 842 pounds (382 kilograms) of lunar rock and soil came back with these astronauts over the course of six moon landings.

As part of that effort, a team including UChicago cosmochemist Nicolas Dauphas performed the largest study to date of oxygen isotopes in lunar rocks, and found a small but measurable difference in the makeup of the moon and Earth.

Southwest Research Institute scientists combined dynamical, thermal, and chemical models of the Moon's formation to explain the relative lack of volatile elements in lunar rocks, when compared to those of Earth.

Scientists at Southwest Research Institute combined dynamical, thermal, and chemical models of the Moon's formation to explain the relative lack of volatile elements in lunar rocks.

«We didn't go the moon for Teflon pans or lunar rocks,» mission astronaut William Anders said during an appearance last month at the Newseum in Washington, D.C., «We went to the moon to beat the «dirty Commies».»

Robert Treash, «Magnetic Remanence in Lunar Rocks,» Pensee, Vol.