Galaxies are sprawling space systems composed of dust, gas, and countless stars. Galaxies consists of a large number of star systems, clusters and interstellar clouds. It is believed that galaxies were formed due to a big cosmic bang billions of years ago. Just few milliseconds after the massiv...
A dwarf galaxy, as the name implies, is a small galaxy, usually composed of around 100 million to a few billion stars. For comparison, the Milky Way...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
What are cosmic rays primarily composed of? What spectral class is the Sun? How does the study of cosmology relate to astronomy? What are quasars, pulsars, and radio waves in space? What is the Hubble telescope? What has the Hubble Telescope been used for?
What do we know about the conditions in young galaxies that led globular clusters to form? Globular clusters do tend to be composed of old stars, but not entirely. Some of them (e.g., Omega Centauri) have a mix of stars of different ages, implying that there are episodes of star ...
We know this because we see it concentrated within galaxies and absent in the gaps between galaxies. However, when we talk about the density of matter in the universe, we're imagining spreading every atom in the universe (three-quarters of which are hydrogen) evenly across space. There's ...
So could it be that Earth really is unique? All living things on Earth are made of the same building blocks, long carbon-based molecules.所以地球真的是独一无二的吗？地球上所有的生物都有着相同的组成成分，即长碳基分子。Scientists now think that a large proportion of these molecules came from...
What is a Nebula Made of? Nebulae are typically characterized by their beautiful and intricate patterns, which are formed from various interstellar materials. These clouds are primarily composed of gas, dust, andplasma, all of which are remnants ofstellar processes, such as the fusion of hydrogen...
Answer and Explanation:1 There are seven f orbitals, six of which are formed of six 'lobes' each, centered at the nucleus, while the remaining orbital is composed of two lobes... Learn more about this topic: Electron Orbitals | Definition, Subshells & Shapes ...
The gamma-ray burst monitor (GBM) is composed of 14 scintillators (twelve sodium iodide and two bismuth germanate) and covers the energy range from a few keV to ∼3030 MeV [44]. With a field of view of almost 4𝜋4π, it is devoted to the detection of GRBs or other burst-like...
Virtual Particles: What are they?[For other articles of mine on this subject, focusing on particular topics, see here, here, here or here] The term “virtual particle” is an endlessly confusing and confused subject for the layperson, and even for the non-expert scientist. I have read...