Tim Dodd
👤 SpeakerAppearances Over Time
Podcast Appearances
There's no air resistance.
There's no...
no anything reacting against it unless it fires a thruster or something to change its trajectory, it's going to be doing the same thing forever.
I mean, eventually, in low Earth orbit specifically, there's still trace amounts of atmosphere.
The atmosphere doesn't just end at space.
Sure.
100 kilometers is our- It's a gradient.
It's a gradient, exactly.
And so even in low Earth orbit at 500 kilometers, you're still running into a couple molecules every now and then.
And that actually does slowly slow you down.
The slower you get, the lower your orbit starts to get.
And eventually it cascades because now you're lower, more molecules, lower, more, you know.
And all of a sudden it goes from like this to all of a sudden, and you just like get sucked in and reenter.
And so for the most part, though, we catalog and track every single object.
And so although it might look terrifying when you see these, you know, animations of thousands and thousands of satellites.
most of them are about the size of this table and they're, you know, tens or 20 kilometers apart from each other because they're also you have all these different orbital altitudes as well.
Exactly.
Just like planes, you know, there's
50,000 planes in the sky right now or whatever the number is.
There's a ton of planes in a smaller area with smaller altitude variations.