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Fleet of satellites in orbit above Earth

Space adverts are now economically viable but potentially dangerous

6 October 2022

Falling launch costs for satellites mean space advertising may now make commercial sense, according to a feasibility study, but the idea remains controversial
An infrared image of Io taken by the Juno spacecraft in 2017

Lava erupting on Jupiter’s volcanic moon Io is over 1000°C

6 October 2022

Astronomers used radio telescopes to estimate the temperature of molten rock on Io, the most volcanically active world in the solar system

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