Why in the News?
As part of his upcoming two-week stay on the International Space Station (ISS) under Axiom-4 Mission, Indian astronaut Shubhanshu Shukla will conduct the Voyager Tardigrades experiment.
What are Tardigrades?
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About Voyager Tardigrades Experiment:
- Overview: The experiment will be conducted by Indian astronaut Shubhanshu Shukla during his mission aboard the International Space Station (ISS).
- Experimental Process: Tardigrades will be transported in their dormant “tun” state, then revived and observed in microgravity conditions.
- Research Focus: The experiment will examine how space radiation and microgravity affect tardigrade survival, reproduction, and DNA repair mechanisms.
- Scientific Objective: Researchers aim to identify genes responsible for space resilience in tardigrades and apply these insights to enhance astronaut protection and preserve biological materials during long-term space travel.
Significance of Tardigrades in Space Research:
- Extreme Survivors: They are among the most resilient organisms on Earth, capable of surviving temperatures from near absolute zero to over 150°C, intense radiation, deep-sea pressure, and even the vacuum of space.
- Dormancy Mechanisms: Their survival strategy relies on cryptobiosis and anhydrobiosis, where their metabolism drops nearly to zero and water content is drastically reduced.
- Protective Proteins: They produce unique proteins like CAHS, which form a gel-like matrix around cells to protect them from damage in extreme environments.
- Biomedical Applications: Studying these proteins may help scientists develop radiation shields for astronauts, preserve human tissues and organs, and advance cryopreservation techniques.
- Agricultural and Material Use: Insights from tardigrades could also lead to engineering drought-resistant crops and designing new biomaterials for use on Earth and in space.
| [UPSC 2012] Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?
1. To enable them to withstand drought 2. To increase the nutritive value of the produce 3. To enable them to grow and do photosynthesis in spaceships and space stations 4. To increase their shelf life. Options: (a) 1 and 2 only (b) 3 and 4 only (c) 1, 2 and 4 only* (d) 1, 2, 3 and 4 |
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