12/12/2024

NASA's Lucy spacecraft prepares for second Earth gravity assist

On Dec. 12, at 11:15 p.m. EST, NASA's Lucy spacecraft, currently in a two-year orbit around the sun, will skim Earth's atmosphere, passing only about 220 miles (360 kilometers) above the surface. This close flyby will result ...

How much CO₂ does Zurich emit?

Cities are the largest source of greenhouse gases in the world. About 70% of all anthropogenic emissions are produced in, around and by cities. At the same time, they have great scope for action to reduce these emissions. ...

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