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Fluorescent glow may reveal hidden life in the cosmos

Harsh ultraviolet radiation flares from red suns, once thought to destroy surface life on planets, might help uncover hidden biospheres. Their radiation could trigger a protective glow from life on exoplanets called biofluorescence.

Aug 14th, 2019

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Finding a cosmic fog within shattered intergalactic pancakes

In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold, dense gas clouds in the IGM organize themselves and react within much larger 'sheets' or 'pancakes' of matter in the vastness of space.

Aug 13th, 2019

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Dark matter may be older than the Big Bang, study suggests

Dark matter, which researchers believe make up about 80% of the universe?s mass, is one of the most elusive mysteries in modern physics. What exactly it is and how it came to be is a mystery, but a new study now suggests that dark matter may have existed before the Big Bang.

Aug 8th, 2019

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Scientists resolve the nature of powerful cosmic objects

At the center of certain galaxies are objects of such tremendous brightness they outshine the rest of their galaxy by four orders of magnitude. Our understanding of these active galactic nuclei has progressed by leaps and bounds over the past several decades, though recently debate has centered on the identity of some of these objects.

Aug 6th, 2019

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Galaxy clusters caught in a first kiss

For the first time, astronomers have found two giant clusters of galaxies that are just about to collide. This observation can be seen as a missing 'piece of the puzzle' in our understanding of the formation of structure in the Universe.

Jul 12th, 2019

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Hubble uncovers black hole disk that shouldn't exist

As if black holes weren't mysterious enough, astronomers using NASA's Hubble Space Telescope have found an unexpected thin disk of material furiously whirling around a supermassive black hole at the heart of the magnificent spiral galaxy NGC 3147, located 130 million light-years away.

Jul 11th, 2019

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