Why in News? 

India plans to establish a fully operational Bharatiya Antariksh Station by 2035 and launch an Indian crewed mission to the Moon by 2040, ahead of the vision of 'Viksit Bharat' by 2047.  

BAS

• Planned similar to the ISS, it will orbit 400–450 km above Earth to support scientific research.   
• Components: 5 modules built in phases; Base Module scheduled for 2028.

Significance