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People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

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Black Holes? I’ll Take a Medium, Please

RATE THIS! +20
Posted in Science on 19th Aug, 2014 01:37 AM by AlexMuller

In one sense, black holes are just ridiculously exotic. Their surface gravity is so powerful that even something as fast as light can’t escape (that’s why they’re black). And what’s actually inside a black hole isn’t just strange: it’s literally indescribable by any known law of physics. But while they’re among the strangest things in the universe, they aren’t especially uncommon.

 

Astronomers now know that black holes with the mass of millions or even billions of stars lurk at the cores of most galaxies, including the Milky Way, while much smaller black holes, containing just a few tens of stars’ worth of matter, are scattered all over the known universe. In theory, there’s no reason intermediate-size black holes shouldn’t exist as well, with masses of a few hundred or a few thousand stars. But so far, despite some tantalizing hints, nobody has definitively found one. That may just have changed, however: a new report in Nature has flagged just such an object in the nearby galaxy Messier 82, which lies about 12 million light-years from Earth in the direction of the Big Dipper.


Tags: black holespacecosmologyastronomyuniversestar

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Comments

Author: Guest
Posted: 2016-05-06
+0
On aimerait en croquer une. On la trouve de plus en plus pae©Ãmufr, ce qui lui donne une attirance encore plus grande. Je me sui pas encore lancé, mais je vais tenter d’en faire une. Reply


 

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