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(GIST OF SCIENCE REPORTER) India’s First Analog Space Mission

(DECEMBER-2024)

India’s First Analog Space Mission

Indian Space Research Organisation (ISRO) has started the country’s first analog space mission at Leh in Ladakh, where space agency will simulate life in an interplanetary habitat.

About Analog Missions

Analog space missions are field tests in locations on Earth that have physical similarities to the extreme space environments and play a significant role in problem solving for spaceflight research.

Key Details

The move assumes significance as India is planning to send a human to the Moon in the near future.
The mission includes a compact, inflatable habitat named Hab-1, which is equipped with essentials like a hydroponics farm, kitchen, and sanitation facilities.
It provides a self-sustaining environment, offering valuable data as India is planning long-duration space missions to the Moon, Mars, and beyond.

Why Ladakh?

Ladakh has been chosen for such a mission as the geographical features of the area – dry and cold climate, barren land, high-altitude terrain and extreme isolation – are considered to closely resemble Martian and lunar landscapes.
Lying at an elevation over 3,000 metres above sea level, Ladakh has oxygen levels only 40% of those at sea level. The low-pressure and low-oxygen setting allows researchers to evaluate life support systems under conditions similar to those on Mars.

Significance of Analog Missions

Analogs play a significant role in problem solving for spaceflight research.
Not all experiments can be done in space – there is not enough time, money, equipment, and manpower.
Countermeasures can be tested in analogs before trying them in space. Those that do not work in analogs will not be flown in space.
Ground-based analog studies are completed more quickly and less expensively.

What hazards do Analog Missions test?

Space is a dangerous, unfriendly place. One goal of analog missions is to look for possible safeguards to the hazards of life in space. Hazards are grouped into five categories related to the stresses they place on the space traveler: Space radiation, isolation/confinement, distance from Earth, gravity fields, and hostile/closed environments.

Space Radiation: Earth’s magnetic field and atmosphere protect us from harsh cosmic radiation, but without that protection, one is more exposed to treacherous radiation.
Possible Hazards: Radiation exposure may increase cancer risk. It can damage the central nervous system, with both acute effects and later consequences, manifesting itself as altered cognitive function, reduced motor function, and behavioral changes. Radiation sickness can result in nausea, vomiting, anorexia, and fatigue.
Isolation/Confinement: Behavioral issues among groups of people occupying a small space over a long time, no matter how well trained they are, are inevitable.
Possible Hazards: A decline in mood, cognition, morale, or interpersonal interaction, sleep disorder, depression, fatigue, boredom. The more confined and isolated humans are, the more likely they are to develop behavioral or cognitive conditions.
Distance from Earth: Planning and self-sufficiency are key. Mars is 140 million miles from Earth on average. With communication delays of up to twenty minutes and the possibility of equipment failures, astronauts must be able to complete the mission on their own. They must have the correct food, medicine, and supplies to sustain them for the duration.
Gravity Fields: There are three gravity fields you would experience on a Mars mission: weightlessness between planets, 1/3 of Earth’s gravity on Mars, and normal gravity upon returning to Earth.
Possible Hazards: Affects spatial orientation, head-eye and hand-eye coordination, balance, locomotion, and can cause motion sickness. Bones lose minerals causing a drop in density. Muscles lose strength and endurance. The cardiovascular system becomes deconditioned. Fluids shifts could put pressure on the eyes causing vision problems. One is apt to develop kidney stones due to dehydration.
Environment: Hostile/Closed: Ecosystem inside the spacecraft plays a big role in everyday astronaut life. Microbes can change characteristics in space, and microorganisms that naturally live on your body are transferred more easily from person to person in closed habitats like the space station. Every inch of living quarters must be carefully designed to ensure a comfortable temperature, lighting, noise-level, and adequate space.
Possible Hazards: Elevated stress hormone levels alter the immune system leading to allergies, illnesses, and disease.