This week in SF history— 2004 February 26. First ISS EVA with no one inside (wikipedia.org)Spaceflight news— Beresheet prepares to land on the Moon (planetary.org) — PS this booster will be the one used for the in-flight abort (americaspace.com)Short & Sweet— Despite issues, Soyuz successfully deploys EgyptSat-A (nasaspaceflight.com) (twitter.com/RussianSpaceWeb/)— Another successful test flight for Virgin Galactic. (spaceflightnow.com)— Hayabusa2’s first sampling! (engadget.com)Questions, comments, corrections— Fantastic Starman sweatshirt (etsy.com)— RPG night on the 8th! (patreon.com)Data Relay: Hypergols— Thanks to Arin Cross for researching and presenting this topic! (linkedin.com)— BFRCs - produced when launches with NTO go wrong (youtube.com)— Early hypergolic testing history: Ignition! An Informal History of Liquid Rocket Propellants, by John Drury Clark (google.com/books)— Video showing a drop of RFNA into a pool of MMH (purdue.edu)— See also — Investigation into the hypergolic ignition process initiated by low weber number collisions. (aiaa.org) — Advances in hypergolic propellants: ignition, hydrazine, and hydrogen peroxide research. (hindawi.com)— Flame structure, a la Arin Cross (proquest.com)— Space Shuttle OMS engines used hydrazine and NTO (books.google.com)— JWST has hypergolic and monopropellant thrusters (jwst-docs.stsci.edu) (PDF: nasa.gov)— More info on JWST momentum dumps (jwst-docs.stsci.edu)— Ariane 5 ECA purges with helium before and after burns (books.google.com) (esa.int)— GSLV and PSLV use Vikas engine (isro.gov.in) — High-thrust Vikas Engine (HTVE) is now used on GSLV Mk III (spacetechasia.com) — Named after Vikram Ambalal Sarabhai. Recommended reading: From Fishing Hamlet to Red Planet: India’s Space Journey (isro.gov.in) — ISRO sent a team of ~50 scientists to France in 1974 to participate in Viking/Ariane development. (indiatimes.com) — Side note: a rag left in a water coolant pipe during installation destroyed a Viking engine in flight (wikipedia.org) — Viking uses transpiration cooling (airandspace.si.edu)— Lots of work is happening in “green” hypergolics (harvard.edu) — A mixture of furfuryl alcohol, ethanolamine and copper (II) chloride (fuel) and 70% hydrogen peroxide was tested at one point (PDF: researchgate.net) — Gelled hypergolics are also an option (docs.lib.purdue.edu) — Hydrazine in a solid fuel for hybrid application (doi.org)— Further reading — Humble, Ronald. Space Propulsion Analysis and Design. United Kingdom: McGraw-Hill Companies,Incorporated, 1995.