解析 D。“distance”表示距离,“long”表示“长的”,距离通常用“长”或“短”来描述,这里说地球和银河系的距离,应该是非常长的,“short”是“短的”,不符合实际。“far”表示“远”,“near”表示“近”,一般不直接修饰“distance”。反馈 收藏
An artist’s view of the Milky Way showing the relative positions of the Earth and a water maser star formation region on the far side whose distance has now been precisely determined by radio interferometric parallax techniques. Bill Saxton, NRAO/ AUI/NSF; Robert Hurt, NASA Astronomers have s...
Astrophysicists have been in a race to measure precisely how fast the Universe is expanding since Hubble announced that galaxies were systematically moving away from Milky Way Galaxy with a current speed in 1929. Hubble's observations came after Einstein's general relativity, which inspired the big...
The astronomical unit once relied on a mathematical equation to provide its value for the distance from the Earth to the Sun. (Image credit: The SOHO-EIT Consortium) One of the stalwart units of astronomy just got a makeover. The International Astronomical Union, the authority on ...
The accuracy of the new measurement promises to help in the quest to detect the elusivegravitational wavespredicted by General Relativity. By monitoring an array of pulsars across theMilky Waygalaxy, scientists hope to measure the distortions of space-time caused by the passage of gravitational waves...
What is the closest galaxy to the Milky Way? How far from Earth is the closest extrasolar planet? What is the largest star cluster in our galaxy? What is a star cluster? What is the angular distance between two stars? How long would it take you to reach the nearest star to Earth?
Earth's Location in the Solar System from Chapter 11/ Lesson 2 25K Our solar system, galaxy, and universe can all be mapped, despite their vast complexity. Learn about Earth's location in the solar system, and explore details of how the Milky Way, galaxies, clusters, and even the 'cente...
Related:Milky Way galaxy: Facts about our galactic home The history of parallax measurements in astronomy The first known astronomical measurement using parallax didn't involve a star but themoon. The ancient Greek astronomerHipparchusreportedly used observations of asolar eclipsefrom two different locati...
Van Woerden H., Schwarz U.J., Hulsbosch A.N.M., 1985, in “The Milky Way Galaxy” (eds. H. van Woerden, R.J. Allen, W.B. Burton), IAU Symposium 106, 387 Van Woerden, H., Schwarz U.J., Robertson J.G., Hulsbosch A.N.M. 1986, in “Gaseous Haloes of Galaxies” (eds...
James Webb Space Telescope discovers most distant and earliest Milky Way 'twin' ever seen. Meet dragon-galaxy Zhúlóng (image) Related:Newfound ultra-faint dwarf galaxies are 'pristine fossils of the early universe' Galaxies emit electromagnetic radiation, or light, across a wide range of radio ...