#ArtemisII launch viewed from the sky

(Not mine)

@stux It’s been a long road getting from there to here … 🖖🏽
@stux ik verwacht dat er een heel groot stuk luchtgebied voor ander vliegverkeer afgesloten is geweest. Dus dan is dit óf enorm heel erg ontzettend vertekend en veel verder weg dat t lijkt óf AI. Ik gok dat laatste.
@stux Faster service AND more leg room!
@stux look at that rate of acceleration!

@stux Never has humanity invented a machine that says more boldly

“That’s it, I’m outta here.”

@stux Oh it accelerated faster than I expected.
@Sibshops @stux You need a lot of delta-v to make orbit! Of course, getting that delta-v from solid fuel rockets doesn't hurt either.

@krutonium @Sibshops @stux definitely makes more sense that "Starship Earth-to-Earth"

Elon Musk's Starship Earth to Earth: We Have Reached Peak Idiocy

YouTube

@stux love how this video gets trotted out and re-atributed every time theres an important rocket launching from florida.

i think the vid is nearly 10 years old, and iirc, was a Falcon 9.

@stux Does anyone know why these rocket launches never go straight up? Seems like that would be the fastest way to leave the atmosphere, but they always start angling over soon after leaving the ground.

The most plausible explanation I can think of is that this is to establish orbital speed so they're not trying to dodge satellites in geosynchronous orbit?

@Shdwdrgn @stux Leaving the thick atmosphere quickly is important, but the real goal is to enter an orbit around Earth, so the trajectory chosen is the best compromise between the two objectives.

Also, the closer to the equator a rocket is launched, the more momentum from earth's rotation can be used for acceleration (to save fuel).

https://www.skyatnightmagazine.com/space-missions/why-do-rockets-not-launch-straight-up

When the Artemis II rocket launches, it won't go straight up. Here's why | BBC Sky at Night Magazine

Why do rockets not launch straight up, but launch in a curved line? The science behind rocket launches and why they don't go straight.

BBC Sky at Night Magazine
@pixelcode @stux Great article, thanks for sharing!
@stux if it's not yours, why is there no credit