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Since its launch in 2020, Solar Orbiter has carried out a number of gravity assists at Earth and Venus to gradually shrink its orbit and bring it closer to the Sun, but never before has it come as close to a planet as it did on 18 February 2025, when it came within just 379 km of Venus. For comparison, astronauts aboard the International Space Station orbit the Earth at an average altitude of 408 km.
The first "Green Day" at IAS, dedicated to climate change and carbon emissions, took place on Thursday, January 9, 2025. This initiative aims to raise awareness within our community about environmental issues and promote concrete actions to reduce the carbon footprint associated with laboratory activities.
In line with its values, the IAS has decided to leave the X and Facebook platforms.
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Best wishes for 2025 from the Institut d'Astrophysique Spatiale !
The electronic greeting card can be found here.
The DiSCo program, thanks to the James Webb telescope, identifies three types of TNOs whose chemical composition, linked to their origin in the protoplanetary disk, sheds light on the formation of planetesimals and the dynamic evolution of the primitive Solar System.
