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A second Martian meteorite that shows 'signs of microbial life' has been found, Hungarian researchers say, 20 years after scientists first made a similar claim.
The meteorite, officially known as ALH-77005, is claimed to contain 'biosignatures', which researchers describe as textures and features left behind by organisms.
Experts - Imaging - Techniques - Microfilaments - Microbes
Experts used advanced imaging techniques that they say revealed microfilaments created by fossilised Martian microbes.
This is not the first time such a claim has been made, with NASA saying in 1996 that it had found similar signs of life on Mars in another space rock.
US - President - Bill - Clinton - Scientists
Even US president Bill Clinton endorsed the scientists' findings at the time, saying the discovery could offer the 'most stunning insights' into the universe.
Scientists at the time said that it was impossible to prove or refute such claims as the markings could have been formed by non-biological processes.
Dr - Ildiko - Gyollai - Hungarian - Academy
Dr Ildiko Gyollai from the Hungarian Academy of Science (HAS) Research Centre for Astronomy and Earth Sciences in Budapest led the most recent study.
His team used a variety of methods to study the a thin section sample of ALH-77005, including optical microscopy and infrared technology, to look at its texture.
Researchers - Minerals - Material - Stone - Isotope
Researchers also examined minerals and other material embedded in the stone, as well as conducting isotope tests to check for the chemical components essential for life.
They concluded that the microscopic filaments inside could point to the presence of...
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