#astrodynamics

[stone-cold-groove]

Skylab in low Earth orbit - 1973.

[h2rtkos]

Why You Cannot Launch Things (Easily) Into the Sun! Ft: Me Taking 18 Years to Get to the Point

[histonics]

[astronauticalaspirations]

Spacecraft generally don’t stay in lunar orbit because the gravity field is so nasty, but this paper suggests that the Apollo 11 ascent stage still may be up there, based on the orbital data we have. Scott Manley walks us through it.

[ahiijny]

When I got to this part of the episode, I was thinking, ‘Wow, the astronomy community’s going to be a mess after this...’

Humans have this really complicated system of inserting leap days (once every 4 years except it’s a multiple of 100 unless again if it’s a multiple 400 years) just because the Earth takes like a quarter of a day longer than 365 days to go around the Sun.

And we insert an extra leap second every couple of years or so just because the Earth takes like 2 milliseconds longer than 86400 seconds to spin on its axis.

But Shem-ha doesn’t care about any of that at all because she wants her lunar eclipse now :P

[skycrorg]

“In high-risk operations, overconfidence can be more dangerous than technical limitations.” For Muhammad Radwan, space is not a symbolic frontier but a domain governed by precision, responsibility, and disciplined decision-making. His vision frames orbital mechanics not merely as mathematical elegance, but as critical infrastructure—where sustainability, collision avoidance, and predictive analytics define the credibility and sovereignty of emerging space actors.

Muhammad Radwan on orbital precision, space safety, and the future of astrodynamics

[cassiopeialife]

A Day in the Life

Today has been a pretty packed full day of academia, so I thought I’d take you on the journey through everything I did so you can get a better idea of just what I get up to. 7am I woke up and had breakfast. Nothing too exciting but the day has to start somewhere and I always try to make sure it’s with something healthy to get my body working! I planned my outfit the night before, it’s a new…

A Day in the Life

[cassiopeialife]

The First Week

So, things have been intense. My first week at uni is now done, I have so much to report I have no idea how long this post is going to be. I’ll do my best to detail everything, without going into too much of the rocket science as I know it’s not everyone’s cup of tea. So, let’s start with Monday morning… Over the past few days I’ve been trying to train myself to wake up early (around 7am), it…

The First Week