That's new molecules that have formed. At the end, we have tiny droplets on the surface of the window which are quite visible to the eye.这是新形成的分子。最后，我们在窗户表面看到了肉眼可见的小水滴。And they constitute the organic matter that's been formed from the initial ice which was...
When people think of the Multiverse / Parallel Universes, the vision that would come to most people's mind is the Many-Worlds theory, but there are other types. Let's start with the Many Worlds theory. Have you ever wondered what life would be like now if you had made a different deci...
Galaxies are some of themost distant objects we can observe. While most planets, stars, and nebulae are usually pretty nearby to us, we can observe galaxies that are millions of light-years away. ... Even if a galaxy is bright, the most you might typically see is its core with a 4-...
Q1.What kinds of behaviour are engendered by the hope of profit? Is such behaviour better or worse, on balance, than the behaviour we should expect if all enterprises were owned by charities or governments? Q2.What will be the effect on socio-economic mobility of the UK government's plan ...
12. How many galaxies are there in the universe? 13. What does a light-year mean? 14. Do you want to travel in space one day? Why or why not? 相关知识点: 试题来源: 解析 12. There are billions of galaxies in the universe. 13. A light-year is the distance that light tra...
What are dwarf galaxies?Question:What are dwarf galaxies?Large Magellanic Cloud:The Large Magellanic Cloud is a galaxy with a single spiral arm that orbits the Milky Way. With an estimated 30 billion stars, it is sometimes classified as a dwarf galaxy and sometimes as a regular galaxy.Answer...
The largest known Galaxy is IC 1101, discovered by Sir William Herschel There are four main types of galaxies (Spiral, Lenticular, Elliptical, Irregular)Galaxy's centre? No one knows for sure. Some say it is a super-star, a collection of bright stars or a super-black hole. The centre ...
While any spiral galaxy can look like a pinwheel when views at the correct angle, there are two galaxies named for their Pinwheel shape. These are the... Learn more about this topic: Different Types of Galaxies | Overview & Examples
42. There are approximately two trillion galaxies in the universe. 43. A light year is the distance that light travels in one year in a vacuum, which is about 9.461×10^12 kilometers. 44. Yes, I want to travel in space one day. Because I am curious about the mysteries of the univer...
Moon phases reveal the passage of time in the night sky. Some nights when we look up at the moon, it is full and bright; sometimes it is just a sliver of silvery light. These changes in appearance are the phases of the moon. As the moon orbits Earth, it cycles through eight distinct...