Amazing Story of the ‘See-Through Blob’ Galaxy

 

Galaxy DF2

 

“I spent an hour just staring at this image,” lead researcher, astronomer Pieter van Dokkum of Yale University says as he recalls first seeing the Hubble image of NGC 1052-DF2, a galaxy completely void of dark matter. “This thing is astonishing, a gigantic blob so sparse that you see the galaxies behind it. It is literally a see-through galaxy. It’s so rare, particularly these days after so many years of Hubble, that you get an image of something and you say, ‘I’ve never seen that before.”

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The Water Paradox –Present from Earth’s Birth in a Forbidding Region of the Solar System

"The Water Paradox" --Present from Earth's Birth in a Forbidding Region of the Solar System

 

If there is magic on this planet, it is contained in water, underscoring the fact that Earth is the only planet known to have liquid water on its surface –a fundamental characteristic when it comes to explaining the emergence of life. “We forget that the water cycle and the life cycle are one,” said scientist and explorer, Jacques Cousteau. Which raises a fascinating question: was Earth’s water always present in the rocks that made up our planet, despite its formation in a region of the Solar System where temperatures were too high for water to condense and clump together with other solids as ice? Or, as some scientists have suggested, delivered later by asteroids and comets that bombarded the Earth?

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Gravitational-Wave Mystery to Strange Dark Matter Discovery (The Galaxy Report)

 

ESO Observatories Chile

 

Today’s “Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of the Milky Way and the Universe beyond.

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Pentagon’s ‘Real Men in Black’ to Ancient Humans Failed to Defend Against Rising Seas (Planet Earth Report)

Earth from ISS

 

The “Planet Earth Report” connects you to headline news on the science, technology, discoveries, people and events changing our planet and the future of the human species.

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“Magic Islands” –Titan’s Very Weird Lakes

 

Lakes of Saturn's Titan

 

“The more we learn about Titan, the more we learn that we can’t ignore the lakes,” said Kendra Farnsworth, a planetary scientist at the University of Arkansas in Fayetteville and lead author of the new study that explains how bubbles erupt in frigid hydrocarbon lakes on Saturn’s largest moon Titan made up of methane and ethane, potentially creating fizz violent enough to form unusual geologic features.

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Astronaut’s Map for Saturn’s Titan to New Search for Extraterrestrials (The Galaxy Report)

 

ESO Observatories Chile

 

Today’s “Galaxy Report” connects you to headline news on the science, technology, discoveries, people and events changing our knowledge of the Milky Way and Universe beyond.

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