Editorial desk

Launch

Launch vehicles, test campaigns and the infrastructure carrying Indian spacecraft from the pad into orbit.

Editorial comparison of Othisis engine descriptions showing 4.5 kN in an earlier post and 5 kN in a later post

Launch

Othisis publishes 3D-printed cryogenic engine hot-fire results

The Bengaluru startup now calls the liquid-oxygen/methane unit a nominal 5 kN engine after earlier reporting 4.5 kN, while test data and a reusable-vehicle demonstration remain undisclosed.

17 August 20265 min read

A bright semi-cryogenic engine exhaust plume firing vertically inside ISRO's Mahendragiri test stand

Launch

ISRO publishes 175-tonne semi-cryogenic power-head test result

The 88%-thrust firing exercised ignition build-up, steady-state operation and the main turbopumps, but a full-power power head, complete engine and flight stage still remain.

13 August 20265 min read

Launch

Vikram-1 reaches orbit on India’s first private orbital launch

Skyroot’s four-stage launcher placed two satellites in low Earth orbit on its maiden flight, crossing a threshold for India’s commercial launch ecosystem.

18 July 20268 min read

Editorial illustration of engineers reviewing telemetry around the third stage of a launch vehicle

Launch analysis

What the PSLV-C62 anomaly review needs to answer

ISRO has located the mission anomaly near the end of the third stage and begun a detailed analysis. Until that work is published, the evidence supports questions—not conclusions.

12 January 20266 min read

Othisis publishes 3D-printed cryogenic engine hot-fire results→

ISRO publishes 175-tonne semi-cryogenic power-head test result→

Vikram-1 reaches orbit on India’s first private orbital launch→

What the PSLV-C62 anomaly review needs to answer→

Othisis publishes 3D-printed cryogenic engine hot-fire results

ISRO publishes 175-tonne semi-cryogenic power-head test result

Vikram-1 reaches orbit on India’s first private orbital launch

What the PSLV-C62 anomaly review needs to answer