101 Foundation partnered with The Department of Mathematics at IIT Guwahati to conduct the first edition of PRISM 2026, a six-week residential training programme in mathematics. The programme is built on a simple premise: that the way a professional mathematician thinks can be taught to teenagers. PRISM — the Programme for Research and Inquiry by Students in Mathematics — was designed to introduce school students to the habits of research mathematicians. Not textbook problem-

AstroSat was expected to last five years. It is still going 11 years later. On the sidelines of ASI 2026 in IIT Guwahati, Prof Annapurni Subramaniam of the Indian Institute of Astrophysics talks about what it actually takes to engineer something that works — in orbit, where no one can fix it. Prof. Annapurni Subramaniam is Director of the Indian Institute of Astrophysics in Bengaluru, and the scientist who led the ultraviolet instrumentation on AstroSat — India's first multi-