Thus, despite much effort, no gelling agent has yet been discovered that possesses all the properties and benefits of agar. Agar continues to be the best all-arounder: versatile, cheap, and established. And, if Gelidium agar should ever run out, and another colloid is not at hand, microbiologists could revert to culinary agar, which, although not as pure and transparent, offers a low-cost alternative to lab-grade agar.
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Nasa said this additional flight would not slow down its return to the Moon - it is still aiming for 2028 for one or even two lunar landings in what will be Artemis IV and V.
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