How Heavy Is the Milky Way?

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By combining data from the Hubble and Gaia space telescopes, an international team of astronomers has come up with the most accurate estimate yet of our galaxy’s mass.

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https://gizmodo.com/how-heavy-is-the-milky-way-1833131376

NASA Image of Merging Galaxy Clusters Looks Suspiciously Like the USS Enterprise

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Humanity’s current understanding of physics may suggest faster-than-light travel is impossible, but researchers here on Earth can still observe happening in places much too far away to ever actually visit (and generally only what they looked like in the distant past). One of them is a galactic collision that, at least…

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https://gizmodo.com/nasa-image-of-merging-galactic-clusters-looks-suspiciou-1830517695

Our Galactic Neighbors Once Collided, New Observation Suggests

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Should you find yourself in the southern hemisphere beneath dark skies, look up: You’ll see two faint, glowing smudges beside the vast, glowing trail of our Milky Way galaxy. These two Magellanic Clouds are galaxies, too, though smaller ones orbiting our own. And some time in the past, perhaps back in the dinosaur…

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https://gizmodo.com/our-galactic-neighbors-once-collided-new-observation-s-1830097492