Monday, January 16, 2017

A Japanese spacecraft has spotted a massive gravity wave in Venus’ atmosphere

The Japanese probe Akatsuki has observed a massive gravity wave in the atmosphere of Venus. This is not the first time such a wave was observed on the Solar System’s second planet, but it is the largest ever recorded, stretching just over 6,000 miles from end to end. Its features also suggest that the dynamics of Venus’ atmosphere are more complex than previously thought.

An atmospheric gravity wave is a ripple in the density of a planet’s atmosphere, according to the European Space Agency. (This isn’t a gravitational wave, which is a ripple in space-time.) We have these waves in Earth’s atmosphere, too; they interfere with weather and cause turbulence. Scientists have observed atmospheric gravity waves on Venus before: the European...

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