EarthSky News - July 31 - More Life Keys in Titan's Atmosphere

July 31 More Life Keys in Titan's Atmosphere by:

More life keys in Titan's atmosphere Scientists expand their knowledge of the stew of ingredients in the atmosphere of Saturn's large moon Titan, and contemplate whether Titan has cooked up life. Iridescent cloud? Or circumhorizon arc? It's easy to confuse these 2 elusive, colorful, beautiful daytime sky phenomena. How can you tell the difference? This week … Waxing gibbous moon It's waxing toward full moon on August 7-8, obliterating the annual meteors showers and edging toward a lunar eclipse, then a solar eclipse.  How do jellyfish swim? Jellyfish float on ocean currents, but they also swim in a couple of different ways.  This post has 2 videos showing 2 different jellyfish propulsion mechanisms.

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This week … Waxing gibbous moon Waxing gibbous moon - more than half lighted but less than full - via OMladyO in Switzerland.

Storm moving in Niccole Kowalski said she witnessed this rainbow on Saturday, forming over the Superstition Mountains in Arizona, while a storm was moving in. Submit your photo to EarthSky here!

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EarthSky News - July 30 - Top Stories This Week

July 30 Top Stories This Week by:

Close shave from an undetected asteroid Astronomers discovered a small asteroid 3 days after it passed 1/3 the moon's distance from Earth. We are galaxy stuff New study suggests that each of us may be made in part from matter that passes from one galaxy to another. How many distant comets? Mysterious long-period comets might be more common - and bigger - than astronomers thought. This coming week … Watch for Delta Aquarid meteors Now through early August is a great time to watch meteors. Why do fireflies light up? Explanation here, plus many wonderful firefly photos. Top tips for binocular stargazing Whether you're a beginning stargazer or a veteran of thousands of starry nights, binoculars can be your best friend. Where's the moon? First quarter The 2nd of this month's 2 first quarter moons happens today. It'll appear half-illuminated and to the east of the dazzling planet Jupiter! Before dawn … Orion the Hunter returns Orion the Hunter - the most noticeable of constellations - returns to the east before dawn in each year at this time.

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This is not a mystical tree It’s an aerial view of glacial river patterns in Iceland. Manish Mamtani used a drone to capture this image.

Before dawn … Orion the Hunter returns Orion the Hunter - the most noticeable of constellations - returns to the east before dawn in each year at this time. Submit your photo to EarthSky here!

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