James Barton

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... James Barton

There is little point in the article unless the link to the original study works, or you tell us what dosage was used. Vitamin D in shops comes in a huge range of doses, and long term use of the biggest dose surely cannot be good.

... James Barton

I’m getting worried about the sheer amount of junk that is up there and that will be deorbited before long.
This scheme is to help remove big satellites, but all of the cube Sat’s have very short lives anyway.
That means we will be putting hazardous chemicals in our upper atmosphere. Are there any studies of what impact these will have?
I’m just thinking about how much worse the likes of ozone are in the upper atmosphere compared to near the ground, and the worse impact of high altitude aircraft exhausts.
Not only that but every week we’re trialling more and more launch vehicles around the eworld, and many seem to be going back to disposable ie burn up in the atmosphere or pollute the sea.