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A quasi-star is a hypothetical type of extremely massive and luminous star that may have existed early in the history of the Universe. Unlike modern stars,
D. The black hole’s matter will release ultraviolet light and X-rays. 相关知识点: 试题来源: 解析 C 正确答案:C 解析:定位第五段第二句话“it is thought…its matter…itself”可知,在爆炸将行星分崩离析,几个月后构成星体的物质开始旋转进入黑洞。与答案C相同。反馈 收藏 ...
Is the Universe Symmetrical? What Is Stellar Nucleosynthesis via Nuclear Fusion? How Did We Learn About the Problems Around the Hubble Tension, Hubble's Constant, & the Age of the Universe? What Are Cosmic Rays and What Do They Reveal About the Universe?
Was the Big Bang an explosion? Although the Big Bang is often described as an "explosion", that's a misleading image. In an explosion, fragments are flung out from a central point into a pre-existing space. If you were at the central point, you'd see all the fragments moving away fr...
Total solar eclipse: The sun is fully obscured by the moon. Partial solar eclipse: The moon doesn't fully block the sun so only a portion of the sun is obscured. Here the moon appears to take a "bite" out of the sun. Annular solar eclipse: The moon is centered in front of the su...
A falling star is a colloquialism that is commonly used in the English language. However, it can also be considered as a type of a misnomer, as well. Meteoroid FactsA meteorite is a piece of matter, such as a rock, that passes into the Earth's atmosphere and hits the Earth's surface...
On the other hand, if one is at a latitude , then the pole star an elevation of above the horizon. At extremely high latitudes , the sun will never set (a phenomenon known as “midnight sun“); but in all other cases, at sunrise or sunset, the sun, pole star, and horizon point...
When a star becomes a red giant it can wreak havoc on anything that happens to be orbiting it. The star balloons in size, swallowing up nearby planets as it grows in size before eventually collapsing in on itself in a colossal explosion. That big boom is what we’re seeing in the image...