Tag Archives: Galaxy

Searching for advanced civilizations in other galaxies: 50 possible candidates found?

At first, this article seems like a bit of a downer: Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies — ScienceDaily. After searching 100,000 galaxies for signs of highly advanced life, a team of scientists has … Continue reading

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The Milky Way May be 50 Percent Bigger Than Thought

Sometimes it’s amazing how much settled science, even something as longstanding as the size of our galaxy, can get called into question: The Milky Way May be 50 Percent Bigger Than Thought : Discovery News. A ring-like filament of stars wrapping … Continue reading

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A close pass by a red dwarf star, and a note on interplanetary and interstellar distances

First, in case you haven’t heard: 70,000 Years Ago, Another Star Flew by the Edge of the Solar System | RealClearScience. According to an international team of astronomers, about 70,000 years ago a red dwarf star — nicknamed “Scholz’s star” for … Continue reading

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Complex life in the universe may be much rarer than previously thought

At least, according to a couple of astrophysicists: Complex life may be possible in only 10% of all galaxies | Science/AAAS | News. The universe may be a lonelier place than previously thought. Of the estimated 100 billion galaxies in the … Continue reading

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Half the stars in the universe may exist outside of galaxies

Every so often you get a reminder of how little we know about the universe: Rogue stars outside galaxies may be everywhere | Science/AAAS | News. You’ve heard of rogue planets, floating through the universe untethered to any solar system. Now … Continue reading

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Video on Laniakea supercluster

I reported on this yesterday, but Nature has put out a video with more information that is well worth checking out.  As a bonus, it demonstrates how to pronounce Laniakea! h/t Matthew Cobb at Why Evolution Is True  

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Your cosmic address: The edge of the Laniakea supercluster

This is pretty cool: New Map Locates Milky Way in Neighborhood of 100,000 Galaxies. A new map of the Milky Way’s cosmic neighborhood shows where our galaxy lives in relation to thousands of others nearby, with scientists giving the newly discovered … Continue reading

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You say multiverse, I say galaxies

Corey Powell has an interesting post up on what he calls the Four Great Eras of Exploration.  The first era was Galileo’s discovery of the vastness of the universe, the second that stars were composed of chemical elements, and the … Continue reading

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The faster interstellar travel is, the further away intelligent aliens are

Ethan Siegel has an excellent post up exploring the possibility of extraterrestrial civilizations. With hundreds of billions of stars (visible, above, in infrared wavelengths) in our galaxy alone, and literally trillions of planets around them, we have many, many chances … Continue reading

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Why is the solar system flat?

Machines Like Us and others linked to this cool video explaining why the solar system is flat. I’m not entirely sure the four dimensional stuff was necessary, although it was interesting.  One thing to realize though, is that while the solar … Continue reading

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