Jupiter’s Great Red Spot is shrinking. And no one is sure why
IT IS the biggest planet in the solar system -- and it is changing fast. This is the mystery of Jupiter that our smartest boffins haven’t solved.
SOMETHING is afoot on Jupiter.
The gas planet is famous for a massive red splotch that we can see from space, the Great Red Spot.
It is a massive anticyclone (the opposite of cyclone) the size of Earth. But lately it’s been shrinking, according to the boffins at NASA. And no one’s quite sure why.
As a matter of fact, the spot is at its smallest size ever recorded. In the late 1800s the red spot was an oval 41,000km wide. Now it’s a circle that’s 16 500km across. And it is shrinking at a rate of 933km a year.
Michael Wong, a scientist at the University of California, Berkeley, said the spot is a mystery. Astronomers don’t know why it’s red or shrinking, or what will happen next.
If this pace continues, in 17 years the spot could be gone. Or it could stop at a smaller size.
Wong said one theory is the spot eats smaller storms, and that it is consuming fewer of them.
Whatever it is, it’s quite pretty to look at.