India will attempt its first-ever docking in orbit late Wednesday (Jan. 8), and you’ll be able to watch the action live as it happens.
Twin satellites, built by the Indian Space Research Organization (ISRO), will try to link up in low Earth orbit on Wednesday night, and the docking is expected to be broadcast on a free livestream that you can watch starting at 9:30 p.m. EST (0230 Jan. 9 GMT). At the time of this livestream, it will be 8:00 a.m. on Jan. 9 India Standard Time.
The Space Docking Experiment, or SpaDeX, satellites launched into space on Dec. 30 and were initially expected to dock on Jan. 6, but ISRO postponed the orbital rendezvous to allow more time for checks. “The docking process requires further validation through ground simulations based on an abort scenario identified today,” ISRO officials wrote in a mission update on the social media site X at the time.
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India’s SpaDeX mission is the country’s first demonstration of the automated docking system ISRO will use to link spacecraft in orbit around Earth and the moon. The company hopes to launch its Chandrayaan-4 sample return mission to the moon’s south pole by 2028, then build a space station for astronauts in orbit around the moon by 2040.
Both moon projects will require automated docking technology. The Chandrayaan-4 mission must dock a sample return capsule to a craft for the trip back to Earth, while the modules of India’s planned Bharatiya Antariksha Station will need docking ports for visiting crews or cargo ships. Similar technology was developed by NASA, Russia, China, Japan and the European Space Agency for their respective space station and moon missions.
SpaDex will use a Chaser and Target spacecraft, each of which weighs 485 pounds (220 kilograms), to test orbital rendezvous and docking while flying 290 miles (467 kilometers) above Earth. The test “will mark India’s entry into the exclusive league of nations capable of mastering space docking,” India’s Minister of State for Science and Technology Jitendra Singh said in a statement before launch.
🇮🇳 #RRM_TD, India’s first space robotic arm, is in action onboard #POEM4! A proud #MakeInIndia milestone in space robotics. 🚀✨ #ISRO #SpaceTech pic.twitter.com/sy3BxrtRN1January 4, 2025
ISRO is also testing other space station technologies on the SpaDeX mission. The Polar Satellite Launch Vehicle that launched the twin satellites also carried a suite of other experiments for ISRO, universities and commercial ventures on a platform called POEM-4. Among them is a small “walking” robotic arm that can crawl across a spacecraft’s exterior, much like the Canadarm2 robot arm on the International Space Station.
“India’s first space robotic arm, is in action onboard POEM-4!” ISRO officials said on Jan. 4. in a X post along with a video of the arm being tested.
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