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- Did Venus ever host life? Big questions are often asked when thinking about other planets: Is there life? WAS there ever life? If so, what sort of life?
- How did Venus and Earth come to be so different? Venus and Earth are similar in size and density, so hypothetically, these planets could be very similar.
- How did Venus form? Even this seemingly basic question about the origin of Venus is still a mystery. “It’s amazing to me that we don’t know whether Venus formed from the same early solar system materials as did Earth and Mars,” says Getty.
- What is the atmospheric composition at Venus? The atmospheric composition of Venus is an important piece of the context we are seeking as we aim to better evaluate Venus’ potential habitability over time.
Oct 26, 2023 · To account for the abundance of nitrogen and carbon dioxide present in Venus’ atmosphere, the researchers conclude that Venus must have had plate tectonics sometime after the planet formed, about 4.5 billion to 3.5 billion years ago.
Some scientists believe Venus has retained plate tectonics with laterally moving blocks of crust, while others hypothesize that this period in Venus’s history is long in the past, perhaps when liquid water was either at the surface or abundant within the crust.
Oct 26, 2023 · But a study published Thursday in the journal Nature Astronomy suggests that Venus in its youth may have possessed a key Earth-like trait: plate tectonics, the continual reshaping of pieces of...
Jul 8, 2020 · To determine if Venus’ tessera plateaus formed in a similar way to Earth’s continents, VERITAS would construct the first global multispectral maps of Venus’ surface composition. If their composition resembles that of continental crust, we’d also gain information about Venus’ wetter past.
- Jet Propulsion Laboratory
Gravitational studies suggest that Venus differs from Earth in lacking an asthenosphere—a layer of lower viscosity and mechanical weakness that allows Earth's crustal tectonic plates to move. The apparent absence of this layer on Venus suggests that the deformation of the Venusian surface must be explained by convective movements within the ...
Oct 27, 2023 · A new study published in Nature Astronomy reveals that Venus, the infernal planet with a surface that can melt lead, may have once had a dynamic history similar to Earth, with plates that moved...
