All 5 Space updates published in December 2025, grouped into 3 subtopics. Each one carries the exam-relevant facts and its GK Bytes; open an update for the complete note with static GK.
ISRO and DRDO qualified the crew module's drogue parachutes at the Rail Track Rocket Sled facility, Chandigarh, deploying them at over 600 kmph - a step toward the first uncrewed Gaganyaan-G1 flight.
ISRO began work on a Third Launch Pad at the Satish Dhawan Space Centre to support heavy-lift missions, including the Next Generation Launch Vehicle and the Gaganyaan programme.
ISRO launched AST SpaceMobile's US-built BlueBird Block-2 communication satellite (~6,100 kg) from Sriharikota - the heaviest payload ever placed in LEO by an LVM3 and the heaviest foreign satellite launched from Indian soil.
The interstellar comet 3I/ATLAS (C/2025 N1) passed closest to Earth at about 270 million km, posing no threat; NASA's JWST and ESA's XMM-Newton studied its coma.
Using James Webb Space Telescope data, Indian astronomers discovered 'Alaknanda', a fully formed spiral galaxy that existed only about 1.5 billion years after the Big Bang, challenging galaxy-formation models.