Heart of Darkness: Strange Gas Stream Blots Out Galaxy’s Bright Core

The bright center of a distant galaxy strangely and unexpectedly darkened recently, and now scientists think the culprit was a rare, powerful stream of gas blowing in front of it, eclipsing its heart.

This new finding may also provide insights into the workings of supermassive black holes and how they influence their galaxies, scientists added.

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Thirty-one years ago, Dick Feynman told me about his ‘sum over histories’ version of quantum mechanics. 'The electron does anything it likes’, he said. 'It goes in any direction at any speed, forward and backward in time, however it likes, and then you add up the amplitudes and it gives you the wavefunction.’ I said to him, 'You’re crazy’. But he wasn’t.
—  F. J. Dyson

White Dwarfs May Hold Nuclear Trigger for Explosive Supernovas

Supernovas, the most powerful stellar explosions in the universe, may result from catastrophic nuclear explosions on dead stars, new research shows. Scientists had long theorized that such nuclear events cause some supernovas, but now researchers finally have direct evidence.

A supernova shines brightly enough to briefly outshine all the stars in its galaxy, making it visible from halfway across the universe. Such explosions are rare, only occurring within each galaxy about every 100 years.

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