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TUCSON, Arizona--Robert Haag has a special rock collection: Haag collects meteorites. Meteorites are rocks that fall to Earth from space.
One day, Haag was looking at some meteorites he had found in Australia. They were thought to have come from Mars. But one of the rocks looked different to Haag.
This looks like a moon rock, Haag thought. Haag had seen rocks that astronauts brought back from the moon in the 1970s. Haag grew excited. No moon
meteorites had ever been found in Australia before--only in Antarctica. His rock discovery could be an important one!
Haag took his rock to scientists for testing. They agreed that the rock probably had come from the moon. They said it probably had been blasted away from the moon's surface by a huge meteor or asteroid. The rock then flew far enough into space to be pulled to Earth by Earth's gravity.
Haag's rock is a piece of breccia (BRECH-ee-uh). A breccia is a large rock made up of smaller rocks fused together by heat.
FACT FILE