New Delhi: Gaganyaan zero gravity training has become a crucial step as the Indian Space Research Organisation (ISRO) prepares astronauts for India’s first human spaceflight mission. As part of this historic programme, selected astronauts are undergoing advanced training to adapt to space-like conditions.
This includes special flights that simulate weightlessness, helping them prepare physically and mentally for life in orbit. With India aiming to join elite nations capable of human spaceflight, this training marks a major milestone in the country’s space journey.
What is Gaganyaan Mission
The Gaganyaan mission is India’s first human spaceflight programme.
Read also: ISRO Human Spaceflight Explained: Gaganyaan Timeline, Crewed Chandrayaan, and Reusable Tech
Its goal is to send Indian astronauts (called Gaganyatris) into low-Earth orbit and safely bring them back.
- Mission will carry up to 3 astronauts
- Orbit planned at around 400 km above Earth
- Duration expected: about 3 days
If successful, India will become the fourth country to independently send humans into space.
Why Gaganyaan Zero Gravity Training is Important
Space does not have normal gravity like Earth. Astronauts experience microgravity (weightlessness), which affects movement, balance, and even thinking ability.
To prepare for this, ISRO is using parabolic flight training, which creates short periods of zero gravity.
Key Benefits of Zero Gravity Training:
- Helps astronauts learn to float and move in space
- Improves body coordination and balance
- Builds mental strength and confidence
- Prepares them for real mission conditions
Experts say this training is not just physical—it is also psychological preparation for handling unfamiliar conditions calmly.
How Zero Gravity Flights Work
ISRO uses specially modified aircraft like:
- Airbus A330
- IL-76 aircraft
These aircraft perform parabolic manoeuvres (up-and-down flight paths).
What happens during the flight:
- Aircraft climbs steeply, then descends
- Creates 30–40 seconds of weightlessness
- Astronauts float inside the cabin
This is the closest simulation of space conditions on Earth.
Inside the Gaganyaan Zero Gravity Training
Zero gravity training is just one part of a larger preparation programme.
Other Training Includes:
- Mission simulations
- Survival training (sea, desert, snow)
- Emergency handling drills
- Space medicine training
Astronauts also train to:
- Operate spacecraft systems
- Handle emergencies like fire or pressure loss
- Work as a team in extreme environments
India’s Progress Towards Human Spaceflight
India has already completed:
- Thousands of ground and safety tests
- Parachute and recovery trials
- Crew escape system validation
Upcoming steps include:
- Multiple uncrewed test missions
- Final crewed mission (expected around 2027)














