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ISRO's Polar Satellite Launch Vehicle PSLV-C52 blasted off from Satish Dhawan Space Centre in Sriharikota at 5:59am on February 14. After the end of a 25-hour countdown, the launch vehicle carrying the Earth observation satellite EOS-04 and two co-passenger payloads — INSPIREsat-1 and INS-2TD — blasted off from the spaceport, marking the Indian space agency's first mission launch in 2022.This marked the 80th launch vehicle mission from Satish Dhawan Space Centre, the 54th flight of PSLV, and the 23rd flight of PSLV in XL…

While AUVs (autonomous underwater vehicles) are invaluable for gathering oceanographic data, they also tend to be fairly large and very expensive. The Hydrus offers a much smaller, less costly alternative, which still packs a lot of punch.Most AUVs are torpedo-shaped robotic watercraft that can autonomously explore the undersea world for days at a time, utilizing a suite of sensors to record video and other forms of data as they do so. They're typically big enough that they have to be launched and retrieved using cranes…