The science of Gaganyaan parachutes | Explained

On umbrellas, springs, and superconductivity

Springs are usually metal wires wound in a spiral, allowing us to store mechanical energy; the umbrella’s rod consists o…

NASA telescope on verge of plunging back to Earth after failed rescue mission

Most of the 1 ½-ton telescope is expected to burn up in the atmosphere. But a handful of pieces made of denser-than-lead…

To overcome technical hurdles, ISRO flew NVS-03 satellite with pyro valves open: Narayanan

Pyro valves are crucial in spacecraft propulsion, and it may be recalled that the NVS-02 (launched in 2025), the second …