NASA to open moon rock samples

Nasa is to open some sealed moon rock samples for the first time in decades for scientific study.

NASA is to open a sealed collection of rock samples from the moon, for scientists to study. (AAP)

For the first time in decades, NASA is about to open some pristine samples of moon rocks and dirt collected by Apollo astronauts.

Hundreds of pounds of moon rocks are locked up at Johnson Space Centre in Houston.

Lab workers are preparing to give some of the samples to scientists for study. Nine US research teams will get a sliver of the lunar loot to examine.

Next month marks the 50th anniversary of the first Apollo moon landing, but sample curator Ryan Zeigler says the timing is a coincidence.

His job is to preserve what the 12 moonwalkers brought back from 1969 through 1972 - lunar samples totaling 842 pounds.

Some samples will be opened and sent to the scientists over the next year.