Live data from Hacker News

Object that fell from the skies identified as separation ring from a rocket

nation.africa

61–66 of 66 posts

Re: Object that fell from the skies identified as separation ring from a rocket

#61
post #52

Earlier quoted context omitted.

There are laws against littering.

Certainly, but that's a very different legal theory from 'compensation for shock.' Incidentally, littering fines for space debris don't have the greatest track record of enforceability.[1] [1] https://www.mentalfloss.com/article/70708/nasas-unpaid-400-l...

Poor people behave the same way all over the world.

Re: Object that fell from the skies identified as separation ring from a rocket

#62

The charts showing the growth of the number of objects in orbit in recent years are wild. I have to expect this will be a lot more common going forward.

How many people will have to be fatally injured before international laws put seriously painful financial fines on companies dropping crap from space? Or will my fantasy come true that all roads, infrastructure, homes and businesses move underground?

> Or will my fantasy come true that all roads, infrastructure, homes and businesses move underground?

Accursed Gamelans. https://www.youtube.com/watch?v=tytrgmVIwlg&t=114s

Re: Object that fell from the skies identified as separation ring from a rocket

#63
post #56
post #51

I'm nearly certain it's irrelevant but it does make me wonder where parts of the rockets used to launch the ballistic missiles that were recently put into hostile action would have landed.

Somewhere in between the launcher and the target. Ballistic missiles fly a near-parabolic sub-orbital trajectory. That also means that everything on the missile reenters and crashes (or reaches the target) within minutes of the launch. This is a matter or energy management. If your payload (the warhead) is going to land somewhere on Earth, why waste energy in flinging it on a high-velocity (possibly orbital) trajecto…

This is all very cool information, thank you!

Re: Object that fell from the skies identified as separation ring from a rocket

#64
post #56
post #51

I'm nearly certain it's irrelevant but it does make me wonder where parts of the rockets used to launch the ballistic missiles that were recently put into hostile action would have landed.

Somewhere in between the launcher and the target. Ballistic missiles fly a near-parabolic sub-orbital trajectory. That also means that everything on the missile reenters and crashes (or reaches the target) within minutes of the launch. This is a matter or energy management. If your payload (the warhead) is going to land somewhere on Earth, why waste energy in flinging it on a high-velocity (possibly orbital) trajecto…

It's fairly niche here, but I would like to note that lofting can be more efficient than either a purely direct or ballistic trajectory -- one only needs consider the case of going higher in the atmosphere so as to have less air drag at extremely high velocities. Can mean a higher speed, acceleration, and a longer range for the same payload.

In a sense, this is actually done with high velocity rocketry in general. Often most launch profiles involve a steep ascent before smoothing it out into a softer turn.

Re: Object that fell from the skies identified as separation ring from a rocket

#66

Earlier quoted context omitted.

I thought it might be an jet-engine cowl, but I don't know enough about planes.

Do you have a theory on where the rest of the airplane went?

My assumption was that it landed sans-cowl.

But it turns out it might be from an Ariane upper stage after all.

Post reply on HN