The quiet community of Ngodini, just outside Nelspruit in Mpumalanga, South Africa, woke up to heartbreaking news that left neighbours and relatives in disbelief. Twelve-year-old Ayanda had always been the responsible one. As the eldest of three children, she helped her mother care for her younger siblings, eight-year-old Sipho and four-year-old Amahle. Their mother, Nomsa, worked hard to provide for them, often reminding her children that no matter how difficult life became, they should always love and protect one another. One cold winter morning, the children woke up as usual. Ayanda prepared breakfast while waiting for their mother to get up for work. Minutes turned into an hour, but Nomsa never came out of her bedroom. Ayanda gently knocked on the door. "Mama?" she called softly. There was no answer. She knocked again, louder this time. "Mama, it's morning. You have to wake up." Still, there was only silence. Growing worried, Ayanda tried opening the door. H...
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Three entirely new lifeforms discovered on space station
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A new species never seen before by science was discovered on the space station through advanced genetic testing.
Three new lifeforms have been discovered in different locations on the International Space Station (ISS), potentially offering researchers a new way to grow food in space.
American and Indian scientists have examined four bacterial strains from the station and found that the three belonged to a species previously unknown to science.
The rod-shaped bacteria were found roughly five years ago in different locations on the station: one on the surface of a dining table, one on an overhead panel at a research station, and another in the Cupola observatory dome.
Image:One was found inside the Cupola dome on the station
As the bacteria are proven to be able to survive the conditions of the ISS, they could contribute to humans growing food in space, according to the researchers.
University of Southern California geneticist Dr Swati Bijlani, who led the research, proposed naming the new species Methylobacterium Ajmalii in honour of Ajmal Khan, an Indian biodiversity scientist.
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The discovery was published in the journal Frontiers in Microbiology and NASA believes the species offer enormous potential for growing food on missions to Mars.
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The species is involved in a number of essential agricultural processes, including nitrogen fixation, phosphate solubilisation, abiotic stress tolerance, plant growth promotion, and biocontrol activity against plant pathogens.
NASA's Dr Kasthuri Venkateswaran and Dr Nitin Kumar Singh said that the strains might possess "biotechnologically useful genetic determinants" for the growing of crops in space.
However, they cautioned that further experimental biology would be required to prove that the new species of bacteria is as much of a space farming game-changer as they suspect.
Image:The discovery, scientists say, could help with the growing of food for missions to Mars
"To grow plants in extreme places where resources are minimal, isolation of novel microbes that help to promote plant growth under stressful conditions is essential," they said.
"Since our group possess expertise in cultivating microorganisms from extreme niches, we have been tasked by the NASA Space Biology Program to survey the ISS for the presence and persistence of the microorganisms.
"Needless to say, the ISS is a cleanly-maintained extreme environment. Crew safety is the number one priority and hence understanding human/plant pathogens are important, but beneficial microbes like this novel Methylobacterium ajmalii are also needed."
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