Where does this come from, and can I check it?

It mapped winds, sulphuric acid clouds and the greenhouse far below. The figure is taken from ESA, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a space fact?

Yes. It sits on the Space shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Venus Express circled the planet for nine years

It mapped winds, sulphuric acid clouds and the greenhouse far below The European probe launched in 2005 and arrived in April 2006, using a radar and spectrometers to study the atmosphere. It showed that wind speeds rise with altitude, reaching faster than the planet turns. It ran out of propellant in 2014. It sits in Mondo's space collection, one of 200 facts that each trace back to the reference below.

Where this comes from

ESA

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Space & Astronomy trivia

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The Hubble mirror was ground to the wrong shapeA 2.2 micrometre error left every image blurred until astronauts fitted corrective optics The space shuttle flew 135 missionsFive orbiters carried 355 people between 1981 and 2011 A day on Venus is longer than its yearVenus turns so slowly that its day outlasts its trip around the Sun Venus is the hottest planet in the solar systemThick greenhouse gases trap heat to make Venus hotter than Mercury Venus rotates backwards relative to most solar system planetsOn Venus the Sun rises in the west and sets in the east Venera 7 survived a landing on VenusThe 1970 probe sent data from the surface for about 23 minutes

Tags: venus, missions, atmosphere

Venus Express circled the planet for nine years: the short answers

Where does this come from, and can I check it?: It mapped winds, sulphuric acid clouds and the greenhouse far below. The figure is taken from ESA, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a space fact?: Yes. It sits on the Space shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.