Questions tagged [pollution]

Questions about the introduction of potentially harmful objects/substances into the environment

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28
votes
6answers
7k views

Would rocket engine exhaust create pockets of gas in space which could hinder further space exploration?

Suppose we establish a moon base. This base would have some population, with some need for supplies, and needs for machinery in the early stages. If we establish shipping lanes in space for these ...
4
votes
1answer
199 views

What will happen to the rocket exhaust particles fired by spacecrafts?

During the launch, when the rocket is itself yet to attain a stable orbit, the exhaust from the launch vehicle is directed approximately in the opposite direction of its velocity. So, there is no ...
2
votes
1answer
113 views

What would be the performances of chlorine trifluoride as an oxydizer?

Inspired by this comment Assume that a particularly deranged moustache-twirling villain with way more time and resources than is reasonable decides to build a satellite-launching rocket using ...
6
votes
3answers
216 views

What propulsion system would not pollute the surface when landing on a pristine celestial body?

A robotic lander on a science mission, especially to an airless body, would like to avoid disturbing the surface it is landing on with rocket exhausts. MSL Curiosity used a Sky Crane to somewhat ...
4
votes
0answers
134 views

Wet space junk and flotsam washing up on shore, will it get worse, is there a plan to mitigate?

This comment links to this collectspace.com post: Three business executives vacationing (?) in the Bahamas came across part of a SpaceX Falcon 9 fairing that washed ashore. They shared their find ...
8
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2answers
1k views

What happens to rocket stages that land in the oceans, and how many are still there?

When a rocket stage is jettisoned into the ocean, does it typically sink? Assuming yes, how many rocket stages are now lying on the ocean floor? Are there, on the ocean floor, areas where there ...
2
votes
1answer
481 views

Does NASA really measure PM2.5 concentrations from space?

Particulate air pollution is a serious health concern, especially the particles small enough to remain in the air as it reaches the deepest, smallest areas in the lungs. These particles can cause ...
0
votes
3answers
2k views

Pollution by rockets and missiles

If we are using lots of toxic fuels like hydrazine for rockets, wouldn't this cause pollution due to the burnt leftovers ? I mean, just consider the amount of rockets and missiles launched in world so ...
22
votes
1answer
3k views

What is the legal status of waste rocket parts ending up in the ocean?

Since most rockets are 'expendable', and perform re-entry over sea, their parts either burn up or end up in the world's oceans. It there any legal basis for the waste (pollution) that ends up in the ...
13
votes
3answers
2k views

Why are Europe’s Air & Space Academy and DLR urging ESA and CNES to reconsider the use of solid fuels for the proposed Ariane 6?

With Ariane 6 launch site selected, CNES (Centre National d’Etudes Spatiales, the French space agency) was aiming to freeze the design of the new rocket in May 24, 2013. A few days after and that same ...