Tag: life
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Bacteria in space: why biological life support systems are the future of space travel
One of the greatest challenges limiting our ability to send astronauts on long-haul missions is the need for constant resupply of essential materials from Earth. Any manned spaceflight needs to carry enough food, water and oxygen to sustain a crew for the duration of the mission, but there is only so much weight a single…
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Secrets of the water bear
Tardigrades (also known as water bears or moss piglets) are among the most resilient animals on the planet. They are termed “extremotolerant”, as while they are not true extremophiles – organisms, usually unicellular, which are adapted to thrive in extreme conditions – these incredible micro-animals are found in the most intense conditions our planet has…
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NASA rover ‘Perseverance’ sets off in search of life on Mars
Launched on 30 July, NASA’s Mars 2020 mission is sending the Mars rover ‘Perseverance’ to search for traces of ancient life and study samples of rock and soil in a crater that once held a lake nine times the size of Loch Ness. It was launched at 07:50 local time from Cape Canaveral Air Force…
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The ABCs of Life on Earth
Researchers at the MRC Laboratory of Molecular Biology, in collaboration with colleagues from the University of Edinburgh, Wrocław University of Science and Technology, and the Polish Academy of Science, have challenged the popular RNA World hypothesis regarding the origin of life on Earth. The work, published in Nature, supports a mixed RNA/DNA model which could…