题目 Which statement is a theory, and not a proven fact? (Text A) A.Our universe is the product of a black hole in another, older universe.B.The black hole in our galaxy is pulling a gas cloud toward itself.C.There are more than 100 billion galaxies in the universe.D.Black hol...
The universe has been expanding ever since, so astronomers are able to age galaxies by computing how much the wavelength of their light has stretched-or redshified-as the expansion takes the galaxies farther from Earth. The redder the light is, the older and more distant the galaxy is. The...
Whether the Universe, a galaxy, or a society is considered to be an animate being, the general struggle isfor entropywhich becomes available throughenergytransition.Memory and agencytogether convert suchenergyintoinformation. While the cosmic dawn marks the union of time and space, giving rise to ...
Which statement is a theory, and not a proven fact? (Text A) A、Black holes are extremely common. B、There are more than 100 billion galaxies in the universe. C、The black hole in our galaxy is pulling a gas cloud toward itself. D
Why is the name "Milky Way" appropriate for our galaxy? If the universe is expanding, are the galaxies becoming larger? Explain 1. What is Hubble's law, and what conclusion about the universe do astronomers draw from it? 2. State three experimental findings that support...
While the new telescope has spotted even older gala xies,dating to within 300 million years of the beginning of the universe,it's the size of these six galaxies that shock the researchers. "Most galaxies in this era are still small and only gradually growing larger over time,...
What is the planet Jupiter known for? What is the order from largest to smallest: galaxy, universe, star, asteroids, planets, moons, solar system? Which gas giant has the strongest magnetosphere? Is Mars the largest planet? What is the closest dwarf planet to Earth? Which planet ...
The universe 13,000 million years ago was very different from the universe we know today. It is understood that stars were forming at a very rapid rate, forming the first dwarf galaxies, whose mergers gave rise to the more massive present-day galaxies, including our own. However, the exact...
Nonetheless,Earthis the only place in the Universe known to harbor life. Is the sun a planet? The sun and moon arenot planetswhen you consider the objects in space they orbit. For the sun to be a planet, it would have to orbit another sun. Although the sun is in a orbit, it moves...
The program, officially named Hubble Deep Fields Initiative 2012, is aimed to advance the knowledge of early galaxy formation by studying high-redshift galaxies in blank fields with the help of gravitational lensing to see the “faintest galaxies in the distant universe”. The Frontier Fields web...