September 9, 2024: In multiple ‘first’, India’s Chandrayaan-3 mission has detected more than 250 seismic signals on the Moon’s South Polar Region, including 50 distinct ones that have no correlation to the activity of the rover’s (Pragyan) movement or operations of other instruments but could be possibly linked to Moonquakes. 
This landmark discovery marks the first collection of seismic data from Moon’s southern polar region and represents the first lunar seismic data since the Apollo missions. 
The data was gathered by the Instrument for Lunar Seismic Activity (ILSA), a sophisticated scientific instrument aboard the Vikram lander. 
Operating for 190 hours between August 24 and September 4, 2023, ILSA is notable for being the first instrument to record ground accelerations from the Moon’s South Pole.  It also represents a technological leap as the first lunar surface instrument to use sensors developed through advanced silicon micromachining technology.