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UPSC Essentials | Daily subject-wise quiz : Science and Technology MCQs on Ilyushin Il-78MKI, GPS interference and more (Week 117)
Are you preparing for UPSC CSE Prelims 2026? Check your progress and revise your topics through this quiz on Science and ...
Gravitational waves: Listening to the heartbeat of space-time
Predicted by Einstein and dismissed as undetectable, gravitational waves were finally heard in 2016. Now, with observatories ...