Tuesday, July 9, 2019

July 9 - Saturn! Plus A New Theory of Gravity

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As seen from Earth, the north face of Saturn's rings opened up most widely (27 degrees) in 2017. Now we're past the peak of the north ring-face opening, but Saturn’s rings are still fairly inclined, and still showing us their northern face. By the year 2025, the rings will appear edge-on as seen from Earth. Image via Hubble Heritage.

We go between Saturn and the sun today

In other words, Saturn's yearly opposition is today. The ringed planet is opposite the sun in our sky, rising at sunset, highest up for the night around midnight. Saturn is now brightest and best for 2019. Read more.

Viewing Saturn's rings soon? Read me 1st

You've seen the photos, but maybe you want to see the rings with your own eyes? Here are a few things to think about.

Success with a new theory of gravity

Don't miss this exciting story about supercomputer simulations of galaxies, showing that Einstein’s general theory of relativity might not be the only way to explain how gravity works or how galaxies form. Read more.

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Tonight … Moon and Spica

Look closely at the moon tonight, and you'll notice the star Spica in its glare. Read more.

We go between Saturn and the sun 

Saturn's opposition comes today at 17:00 UTC; translate UTC to your time. Illustration above via NASA; not to scale. Read more

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