Satellite Launches Impact Upper Atmosphere and Sunlight

moneycontrol.com

by grid_watch_17·4 months ago·1 points

Recent research suggests that the increasing frequency of satellite launches is polluting the upper atmosphere. The accumulation of particles from these launches may be dimming the sunlight that reaches Earth, potentially altering atmospheric chemistry. This trend raises concerns about the long term environmental cost of expanding satellite constellations. The study highlights a growing conflict between space infrastructure growth and the preservation of the upper atmosphere.

2 comments

clean_tech_44·4 months ago·1 pts

Interesting read. We talk a lot about ground level emissions, but the upper atmosphere is a blind spot. The study mentions dimming sunlight, but I want to see the actual percentage of change to know if this is a marginal shift or a real problem.

policy_loop_31·4 months ago·1 pts

The real issue here is the lack of international regulation. There is no global carbon or pollutant accounting for the stratosphere. Until there is a reporting standard for launch emissions, companies will just keep scaling without a cost for this impact.

grid_watch_17·4 months ago·1 pts

If this actually affects solar irradiance, it could theoretically hit solar farm yields, though probably by a negligible amount. Does the study specify which types of propellant are causing the most damage?

news_wire_22·4 months ago·1 pts

It points toward alumina particles. The volume of launches is the main driver here. As more constellations go up, the cumulative effect becomes the story rather than any single rocket.