现晕光
发表于 2025-3-28 18:17:53
Structure Formations are grouped in clusters, which are in turn grouped into still larger structures, called superclusters. The formation of cosmic structures is an active area of research, and we now believe we have a good idea of how they emerged.
BUCK
发表于 2025-3-28 21:24:56
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协定
发表于 2025-3-29 01:16:58
Niamh Stephenson,Dimitris Papadopouloseriously had spectral lines that were red-shifted, indicating that they were moving away from the Earth, some at speeds of up to 1000 km/s. Motion at high speed is not uncommon in the cosmos—the Sun, for example, orbits around the center of our Galaxy at 240 km/s.
使虚弱
发表于 2025-3-29 04:15:41
Sean F. Edgecomb,Benjamin Gillespiend that the universe was denser in its past than it is today. In fact, the density of the universe grows without bound as we wind the clock back to the big bang. Furthermore, the temperature of the universe also soars to extremely high values. How do we know this? And what does this imply about the conditions of the early universe?
delta-waves
发表于 2025-3-29 09:28:04
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irritation
发表于 2025-3-29 14:33:41
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减少
发表于 2025-3-29 17:05:44
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无能性
发表于 2025-3-29 22:14:49
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结束
发表于 2025-3-29 23:57:22
https://doi.org/10.1007/978-3-319-45044-5In his monumental . Newton formulated the general laws of motion and the law of universal gravitation. He then applied these laws to explain the motion of planets and comets, projectile trajectories, and the marine tides, among other things.
锡箔纸
发表于 2025-3-30 06:42:35
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