on 2011 May 4, there are 547 confirmed planets. The Kepler mission has released so far 1235 planetary candidates that are awaiting confirmation. But, there are (at least) several hundred billion stars in the Milky Way - are there that many planets? A recent study of microlensing by ...
Some astronomers think that there may be as many planets as there are stars. This idea suggests that some type of life probably exists on millions of planets. If that life is intelligent, maybe an alien astronomer could tell you how many stars there are in the universe.Do you enjoy ...
2. How many continents are there on Earth? 地球上有多少个大洲? 3. How many oceans are there in the world? 世界上有多少个海洋? 4. How many planets are there in our solar system? 我们的太阳系里有多少颗行星? 5. How many stars are there in the Milky Way galaxy? 银河系里有多少颗星星...
How many planets are there in our solar system?2. Why does the earth have life?Reading Comprehension Direction: After reading the following passage, there will be five questions. Please choose the best answer for each question from the four choices (A, B, C, and D).The Solar System If ...
2.What was the earth like in the universe?3.What do we use to work out how far away a star is from the earth?4.How many stars are there in the Milky Way?5.What does "Milky Way" mean in Chinese?第3个 e have light-years `` 答案 1.the sun together with its planets,travels...
howmany 句型结构 HowMany 句型可以用于询问某种数量或频率的问题。以下是对该 句型的应用的一些例子: 1. How many planets are there in our solar system? 2. How many bones are there in the human body? 3. How many countries are there in the world? 4. How many continents are there on Earth...
How many planets are there? 212019-07 3 Nico's gift chapter 3 92019-07 4 How hot is the sun? 62019-07 5 What is a black hole? 102019-07 6 What is a red giant? 82019-07 7 What are stars made of? 162019-07 8 Nico's Gift Chapter 2 122019-07 9 What are the Milky way? 820...
How many elements are there in the periodic table? - There are 118 elements in the periodic table. How many planets are in our solar system? - There are 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. How many bones are in the human...
1. How many dimensions are there in space?1.空间中有多少个维度?2. What is the shape of the universe?2.宇宙的形状是怎样的?3. Where did the big bang start?3.大爆炸从何处开始?4. Why don't the orbits of planets decay and cause them to crash into each other?4.为什么行星的轨道不...
Finding Planets in the "Galactic Habitable Zone" Normally when scientists use the words "habitable zone," they are referring to a region of space around a star where a planet would be able to sustain liquid water, meaning the planet is neither too hot, nor too cold. But, it also has to...