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Articles sur Planetary science

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New research suggests that Venus’ crust is broken into large blocks – the dark reddish–purple areas – that are surrounded by belts of tectonic structures shown in lighter yellow–red. Paul K. Byrne/NASA/USGS

The surface of Venus is cracked and moves like ice floating on the ocean – likely due to tectonic activity

Researchers used decades-old radar data and found that some low-lying areas of Venus’ crust are moving and jostling. This evidence is some of the strongest yet of tectonic activity on Venus.
Ever since the Parkes dish helped broadcast the Moon landings, Australia has been hiding its light under a bushel when it comes to space science. AAP Image/Mick Tsikas

Why isn’t Australia in deep space?

Australia played a vital role in beaming the Apollo 11 Moon landing to the world. But since then we’ve passed up the opportunity to cement our place in exploring outer space.
Pluto in enhanced color, to illustrate differences in the composition and texture of its surface. NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute

I’ve Always Wondered: How do we know what lies at the heart of Pluto?

Pluto has a density between that of rock and ice – so that immediately suggests the dwarf planet is made of a mix of both. But how do we know?

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