NASA spots Israeli spacecraft’s crash site on Moon

Trump pumps USD 1.6 bn extra into NASA budget to ensure Moon landing by 2024

These faults resemble small stair-shaped cliffs, or scarps, when seen from the.

As the moon's interior cools, it shrinks, which causes its hard surface to crack and form fault lines, according to research sponsored by NASA.

He added: 'The president has granted us 1.6 billion additional dollars, that didn't come from the science mission directorate, it didn't come from the International Space Station - 1.6 billion additional dollars for our acceleration of the lunar program so that we can get the next man and the first woman to the surface of the moon. But a new analysis of Apollo-era data suggests these conclusions are inaccurate.

We found that the epicentres of eight near-surface quakes fall within 30km of a fault scarp, the distance of the expected strong ground shaking.

During the study, researchers analyzed 28 moonquakes from 1969 to 1977 and found that eight of these quakes were the result of pure tectonic activities. A paper describing the work, co-authored by Schmerr, was published in the journal Nature Geoscience on May 13, 2019. "It's quite likely that the faults are still active today. You don't often get to see active tectonics anywhere but Earth, so it's very exciting to think these faults may still be producing moonquakes".

A total of five seismometers were placed on the Moon's surface by crewmembers of Apollo 11, 12, 14, 15 and 16.

There have been a range of theories about what causes quakes, including meteorite collisions or gravitational forces exerted by the Earth and sun.

The team of scientists behind the new paper developed an algorithm that allowed them to accurately pinpoint the epicenters of these moonquakes.

It turns out, that a large proportion of the quakes coincide with young fault scarps; a displacement of the land caused by a shortening, or contraction, of the crust. Eventually, it breaks, forming thrust faults.

Moonquakes, like the recent marsquakes that were recorded on Mars, are caused by the sudden release of energy transmitted as seismic waves and there are at least four different kinds of them on the Moon.

Like the Earth, the Moon has a core, mantle, and crust, but the core of the Moon is much smaller and only partially liquid (approximately 40 percent of the lunar core is believed to have solidified).

Much as a grape wrinkles as it dries to become a raisin, the moon also wrinkles as its interior cools and shrinks. This breakage results in thrust faults, where one section of crust is pushed up over an adjacent section.

There are now thousands of cliffs scattered across the moon's surface, averaging a few miles long and tens of yards high.

Most of the rest- $651 million - would go to SLS and Orion "to make sure they stay on track", Gerstenmaier said.

Analysis shows that these faults are relatively young, not older than about 50m years.

Beresheet hit the surface at a low angle of approach (8.4 degrees relative to the surface) and with a relatively low velocity and light mass compared to a typical meteoroid (space rock) that slams into the moon's surface, NASA officials noted.



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