The slow rotation period of Venus (it takes 243 Earth days to complete one full rotation) and the orientation of its spin axis to its orbital plane (177°, ...

In his initial models of 2.9 billion year old Venus, Way stuck with a slow, modern-day rotational period of 243 Earth days. But when he spun Venus up to give it a 16 Earth-day period, the planet ...

Modern-day Venus is a hellish place, ... In the most extreme cases, that tidal force could have slowed down the rotational period by as much as 72 Earth days per million years.

Attempts to measure the exact rotation period of the planet, however, have been difficult. Different spacecraft have all come up with slightly different answers, on the order of a few minutes.

It was discovered that Venus' slow rotational period of 117 Earth days, in conjunction with the ancient analog of our Sun used in the study, ...

If the rotation period is 243.16 days retrograde, the axis of Venus which points toward the Earth at one inferior conjunction will point toward the Earth at all subsequent inferior conjunctions.

Whether the rotation axis of Venus did switch in the past depends upon its initial rotation period, according to Correia and Laskar. Their simulations suggest that the axis would only have flipped if ...

Venus is a hellhole. ... When the simulation was re-run with a much faster rotational period of 16 Earth days, average temperatures were nearly five times hotter -- 133 degrees F, ...

It was evident that in the case of Venus the rotation period was to be reckoned, not in hours, but in days. It being thus demonstrated what it was not, it remains now to determine what it was.

Venus was already known for fast winds, but new research now finds that their speed has steadily been increasing over the last six years. ... and to the rotation period of Venus. ...

DURING the years 1876 and 1878 I paid some attention to Venus at the Kempshot Observatory, and although no distinct markings on the disc were seen in the very small equatorial, yet the following ...

The howling, hurricane-force winds of Venus are blowing even faster lately, and scientists aren't sure why. Average cloud-top wind speeds on Venus rose 33 percent between 2006 and 2012, jumping ...