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Of all the planets in our Solar System, Jupiter is probably the most interesting to look at. It’s just a big ball of fast-moving gasses in all kinds of wild colors. The planet hosts storms that could swallow the entirety of Earth, and while we can see lots of neat things happening near the planet’s cloud tops it’s a lot more difficult to determine what is actually going on deeper inside the planet.

Now, thanks to some fancy calculations and jet stream models inspired by Earth’s own weather patterns, researchers have a new theory on just why Jupiter’s crazy bands seem so perfectly arranged.

In the study, which was published in The Astrophysical Journal, scientists explain that the jet streams on the planet are likely cut off by magnetized gasses deeper within the planet. The jet streams control the flow of gasses around the planet’s outer atmosphere where colorful bands of ammonia twist around the planet. These jet streams stretch many miles into the planet, but stop once they reach the magnetized gasses closer to its center.

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The astronomical observatory was founded by the Jesuits during the Spanish occupation and later transferred to the Philippine Commonwealth Weather Department. This was adjacent to the University of the Philippines campus of today south of Luneta Park. The observatory had a 19-inch refracting telescope, by far the largest in the Orient. The staff of the observatory includes five Jesuit fathers and twenty-five well-trained native assistants. The construction of a 19-inch refracting telescope and dome was in 1897.

US signal corps photo, US national archives.

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Who’s up for a swim?


Our world was rocked by last week’s announcement of good radar evidence for a liquid water “lake” under the Red Planet’s south pole. Senior Editor Emily Lakdawalla introduces us to the story that is then taken up by two of host Mat Kaplan’s favorite Martians. The Goddard Space Flight Center’s James Garvin headed NASA’s Mars exploration program, while NASA Ames astrobiologist Chris McKay co-founded the Mars Underground more than 35 years ago. Look up! Mars is still close by, and the Perseid meteor shower is around the corner. Bruce Betts gives us the What’s Up lowdown.

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