Friday Update: Doldrums and Lasers

Hello Orbital Friends! It’s Friday, so here’s what Orbital Arc was up to the last two weeks (since last Friday was the day after Thanksgiving, and I skipped an update). First, the annealing furnace at Rice is still broken, so lab progress remains stalled....

Monday Tech Topic: Specific Impulse and Delta-V

It’s Monday! Let’s talk about specific impulse. Specific impulse (otherwise known as ISP) is to spacecraft what miles-per-gallon is to your old internal combustion engine car. It’s fuel efficiency. ISP is what determines how much push (or, formally,...

Monday Tech Topic: Ions

Orbital Arc is developing a new type of ion engine. Great, but sounds pretty sci-fi. What is an ion engine, anyway? For that matter, what is an ion? Let’s get back to basics. (NASA test of a Hall Effect Thruster (HET) for Gateway lunar space station; HETs are...

Friday Update: The Last 5 Months at Orbital Arc

So, back in June, Orbital Arc wrapped up our time at the Techstars Industries of the Future Accelerator in Tennessee with a big demo day, and eager plans to fundraise about a $500k pre-seed round to hire our first three people, and finish up our first prototype. And...