Home > AGW, Climate Change, Global Warming, Omniclimate > Venus: Stranger Than We Thought

Venus: Stranger Than We Thought

Until now, there were many strange things already about Venus. Now, there is one more, with possible climate implications. From ESA’s Venus Express: Could Venus be shifting gear?

[…] ESA’s Venus Express spacecraft has discovered that our cloud-covered neighbour spins a little slower than previously measured. […]  Over its four-year mission, Magellan was able to watch features rotate under the spacecraft, allowing scientists to determine the length of the day on Venus as being equal to 243.0185 Earth days. . However, surface features seen by Venus Express some 16 years later could only be lined up with those observed by Magellan if the length of the Venus day is on average 6.5 minutes longer than Magellan measured. […]

A quick back-of-the-envelope calculation indicates that 6.5 minutes in 16 years translates in 1.56 watt per hour on each square meter of Venus’ surface, if all the rotational energy is converted into heat (I couldn’t double-check the results though). If this process is cumulative, it will certainly have huge consequences.

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  1. pjl20
    2012/02/12 at 11:21

    I would like to know what is meant by the statement ‘If this process is cumulative, it will certainly have huge consequences’.

    Does one have to be an Astro-physicist to understand the full implications of the research observations made by the Venus Express spacecraft?

    Will this information really enable us to hypothesise further about Earth’s climate, or is it just another interesting discovery about Venus?

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