Central star in a planetary nebula reveals details of its life

Stars like our sun end their lives as white dwarfs. Some of them are surrounded by a planetary nebula consisting of gas ejected by the dying star shortly before its death. An international research team led by Professor Klaus ...

Energy sector CO2 emissions hit record in 2022: study

Global energy sector carbon dioxide emissions hit a record peak last year counter to Paris commitments, a key study warned Monday, and highlighted the "worst ever" impacts of climate change.

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