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Jun 3, 2021 · NASA announced plans on Wednesday to launch a pair of missions to Venus between 2028 and 2030 - its first in decades - to study the atmosphere and geologic features of Earth's so-called sister ...
Jun 2, 2021 · NASA has selected two new missions to Venus, Earth’s nearest planetary neighbor. Part of NASA’s Discovery Program , the missions aim to understand how Venus became an inferno-like world when it has so many other characteristics similar to ours – and may have been the first habitable world in the solar system, complete with an ocean and Earth-like climate.
- Why Are Venus and Earth So Different?
- Did Venus Once Have Oceans?
- Did Venus Have continents?
- Is Venus Still Volcanically active?
- Is There Phosphine on Venus?
- Is There ‘Snow’ on Venus?
One of the major questions about Venus is why, despite being a similar size to Earth and a similar distance from the Sun, is it a hellish localewith a poisonous atmosphere composed mostly of carbon dioxide and surface temperatures that are hot enough to melt lead, rather than a pleasant oasis for life. “Why is Venus, our sibling planet, not our twi...
Working out whether Venus ever had bodies of liquid water on its surface is crucial to understanding why Venus and Earth are different. Astronomers can see hints of past waterin the planet’s atmosphere, but it’s unclear whether this water comes from ancient oceans on the surface that were lost as the planet warmed, or whether water existed only as ...
About 7% of Venus is covered in highland regionsknown as tesserae, plateaus that rise above the surrounding surface. These “might be the equivalent of continents on Earth”, says Byrne. To find out, VERITAS will study the composition of the tesserae, including comparing their content of the volcanic rock basalt with regions at lower elevation. “On E...
Earlier probes have shown that volcanoes are present on Venus, but it’s unclear whether any have been geologically active in the past few thousand years — or whether they are still active today. Both VERITAS and EnVision will help to answer this question by mapping the surface. EnVision’s high-resolution images in particular are expected to reveal ...
Last year, scientists announced that they had detected phosphine — a compound of phosphorus and a possible signature of life — on Venus. How this would have been produced was unclear, but there was a tantalizing possibility that it could have been made by microbial life in the atmosphere. The result has since been called into question, and the pres...
The planet’s mountaintops above 2.6 kilometres look strangely reflective, like those on Earth do, “where you have snow and frost deposited above a certain altitude”, says Wilson. But Venus is much too hot for water to exist, leading scientists to wonder whether the reflective regions might be something else. One possibility is a substance called se...
- Jonathan O'Callaghan
- 2021
Jun 2, 2021 · Global view of the northern hemisphere of Venus, based on radar data from NASA's Magellan orbiter, which peered underneath the planet's veil of swirling clouds from 1990 to 1994.
Jun 2, 2021 · — NASA (@NASA) June 2, 2021. ... That will test a hypothesis that some parts of Venus’s crust are similar to Earth’s continents while most of the rest are like the basalt that form Earth’s ...
Jun 29, 2021 · Venus is often called Earth’s sister planet or twin because the two worlds are of similar size and density. ... one of three missions to Venus announced in June 2021 by NASA and the European ...
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Jun 3, 2021 · Composite image of Venus based on data from NASA’s Magellan spacecraft and Pioneer Venus Orbiter. The space agency is now developing two new missions to Venus, each designed to reveal hidden ...
