By modern estimates, the universe is only about 5% regular matter and energy and about 27% dark matter, or more than five times as much. The remaining 68% of the universe is thought to be dark energy—a topic for another day. Credit: NASA's Goddard Space Flight Center The fact ...
There is also such a thing asantimatter, which is not the same as dark matter. Antimatter consists of particles that are essentially the same as visible matter particles but with opposite electrical charges. These particles are called antiprotons and positrons (or antielectrons). When antiparticl...
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He's dirty and he does his best to deny the fact that he's a hero the whole time.——Frank Miller •【弗兰克·米勒(美国漫画小说家,代表作《Sin Cit》《300》):黑色英雄是个骑士,穿着血染的盔甲,非常脏,但他全力否认自己一直是个英雄这一事实。】 Episode 11: Birthright(2007.12.12) • It...
However, the reality is that dark matter's existence has not yet been proved. Dark matter is still a hypothesis, albeit a rather well-supported one. Any scientific theory has to make predictions, and if it's right, then the measurements you do should line up with the predictions. The sam...
As darkness came over the field and the match ended, the goal keeper, Juan, walked over to me and said in a matter-of-fact way, "In your home, do you have a moon too?" I was surprised. After I explained to Juan that yes, we did have a moon and yes, it was very similar to...
Using the fact that gravity affects Dark Matter similar to visible matter, scientists have significantly narrowed down the potential range of Dark Matter particle masses. This has established both the lower and upper limits for Dark Matter’s mass. ...
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