but it contains some bright nurseries—dense gaseous regions where new stars form. Its most unusual feature, though, is a dark “void” on one side of the galaxy’s core, which looks like a hole has been punched through the disk. The region contains a few old, faint...
That became the most studied event in the history of astronomy. 那事件成为天文学史上最被拿来研究的事件。 It yielded a treasure trove of data 它衍生出了珍贵的资料, that’s helped pin down the speed of gravity, 协助确定了引力的速度, bolster important theories in astrophysics, 支持重要的天体物...
Since 1967, researchers have identified many pulsars. Some of these are among the most reliable clocks in the cosmos, thanks to their incredibly regular rotations. The fastest can spin around hundreds or thousands of times each second. Even for an object that small, that’s an incredible rate ...
Find out the fundamentals and other important topics in the branches of physics. Related to this QuestionWhat is the Universe - space or matter? Which element has the lightest atoms? What is the most metal-rich terrestrial planet? What is a dark matter? The interstellar medium has a cool co...
如果它离我们那么远,却是那么亮 If its that far away and as bright as it was, 那么它一定是宇宙中最亮的物体了 this must be the most luminous known object in the universe. 这就是为什么这些东西在这么长时间里 And this is one of the reasons these were so mysterious 一直保持神秘 for so ...
” 物體越重,會導致周邊空間更大的扭曲,“First, the more massive the bowling ball, the greater the distortion it causes in the rubber membrane; similarly, in Einstein's description of gravity the more massive an object is, the greater the distortion it causes in the surrounding space....
—What's the most massive object in the universe? Even the largest-known black hole in the universe— a cosmic titan named TON 618, weighing an estimated 40 billion solar masses — appears to be near the theoretical limit of how big black holes can get. This limit comes from the fact ...
)”以及“In order to see farther into space, we must rely on telescopes. How far can we see using the most powerful telescopes?(为了看得更远的太空,我们必须依靠望远镜。使用最强大的望远镜,我们能看到多远?)”可知,作者提到仙女座星系是想表达肉眼可见范围十分有限,故选C。 (2)题详解: 细节理解题...
Several methods have been put forward in the literature to extract information from the kSZ effect. The most widespread technique is the so-called mean pairwise velocity (or pairwise momentum) estimator, which constrains the mean relative velocity between pairs of mass tracers (e.g. galaxy cluste...
The phenomenon of the Dark Matter is one of the most intriguing mysteries in the Universe. In fact, not only it implies the existence of unknown Science and in particular of unknown Physics, but it concerns the fabrics itself of the Universe. A new Law of Nature, yet to be discovered, ...