Monday, November 25, 2019

Nov 25 - Geysers on Jupiter's Moon

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Artist’s concept of a water vapor plume on Jupiter's large moon Europa. It's thought that this moon has a liquid ocean of water beneath its icy crust. The bright star in this image is our sun. Image via NASA/ESA/K. Retherford/SwRI/SYFY.

Scientists confirm Europa's water vapor geysers ... maybe

Jupiter's large moon Europa is one of the most intriguing places in the solar system, an ocean world that might support life of some kind. As well as a subsurface ocean, it might also share another characteristic of Saturn's moon Enceladus: geyser-like water vapor plumes bursting through its icy surface. The evidence for geysers on Europa has been tentative up to now, but scientists now say they've found what might be new confirmation: they reported the direct detection of water vapor above the moon's surface. Read more.
Don't miss these Jupiter-Venus photos
Many thanks to all who submitted photos of last night's conjunction to EarthSky Community Photos. See more of these 2 amazing planets - brightest ones visible from Earth, still close in the west after sunset - via our communities on Facebook, Twitter and Instagram.

Achernar is the end of the River

Achernar is the 9th brightest star and flattest star known. It's famous as the southernmost bright star in the constellation Eridanus the River. Here's why much of Earth never sees it ... and how you can. Read more.

What we're reading

 

From Scientific American … Top 10 emerging technologies of 2019

Scientific American and the World Economic Forum gathered together leading technology experts to identify this year's top 10 emerging technologies. Here's an example. One day soon, an emerging technology will let you virtually teleport to a distant site and actually feel the handshakes and hugs of fellow cyber travelers. Read more.
EarthSky lunar calendars are back in stock. Order now!

We're guaranteed to sell out. They make awesome holiday gifts. Your support means the world to us and helps us keep going. Purchase here.

Tonight … Keep watching Venus and Jupiter

View larger. | Wow. It was tough choosing from among the many beautiful photos we received last night at EarthSky Community Photos. Thank you all for submitting! This one is from Robert Williams in Hanover, Pennsylvania. We're now one day past the Venus-Jupiter conjunction, but the 2 planets - brightest ones visible from Earth - are still amazing in the west after sunset. Watch for them.

Tonight … Keep watching Venus and Jupiter

View at EarthSky Community Photos. | Greg Hogan in Perry, Georgia, wrote: "Took the kids out to see the conjunction. :)" Thanks, Greg, and thank you to all who submitted Venus-Jupiter photos to EarthSky Community Photos. By the way, in the sky and in the photos, Venus is the brighter object.

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