June 15 - Top Stories This Week

June 15 Top Stories This Week by:

Composite image of Jupiter and its 4 Galilean moons. From top to bottom the moons are Io, Europa, Ganymede, Callisto. Original images acquired by the Galileo spacecraft, which orbited Jupiter from 1995 to 2003.

How to see Jupiter's moons With Jupiter at its closest to Earth, now is a good time to look for its 4 largest moons. Here's how. Waterfall illusion: Still objects seem to move Check out this visual illusion and find out what it says about your brain, here.  Iridescent cloud? Or circumhorizon arc? Here's how to tell the difference between these 2 elusive, colorful daytime sky phenomena. More top stories ALMA spies a cool gas ring around our Milky Way’s central black hole Has the ball lightning mystery been solved? Is Jupiter's Great Red Spot disintegrating? Watch these 2 planets: Mercury and Mars Earliest sunrises before summer solstice Earth and Jupiter closest on June 12 All you need to know: June solstice 2019

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Moon to sweep by Antares and Jupiter Antares is a red supergiant star, and Jupiter is a giant gaseous planet. The moon is a rocky ball. Antares, being a star, shines by its light. The moon and Jupiter - although brighter to our eyes - shine only by reflecting sunlight. Read more.

Jupiter and its moons, Beijing, China View larger at EarthSky Community Photos. | Photographer Zheng Zhi in Beijing caught Jupiter and its moons this week as the planet reached opposition in earthly skies. He wrote: "This is the best time to see this planet." And so it is. Visit EarthSky's planet guide, and be sure to view this photo larger. Those little dots are Jupiter's moons! Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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