ISRO developing green propulsion for human space mission: K Sivan

ISRO Chairman K Sivan recently said the space agency was developing 'green propulsion' for its ambitious human space flight mission, 'Gaganyaan'.

"As India continues to focus on economic growth, it needs to ensure that environmental damage is limited by adopting green technologies. ISRO has made space-grade lithium-ion batteries and this technology is useful for mass adoption of electric vehicle", he said.

According to ISRO, the polar satellite launch vehicle (PSLV), a trusted workhorse of the space scientists, is a four-stage rocket filled with fuel, which pushes the rocket to ensure that the satellite it carries is placed in the intended orbit.