The number of inhabitable planets within the Milky Way galaxy could be as high as 10 billion. Of course, the majority of these planets are further away than current technology could transport us. The best candidates for planets that can support life are those within a star's "habitable zone,...
Do you really need to know how many stars there are in the universe?Andromed a Galaxy Questions1. What is a galaxy? a. Milky Chocolate. b. A cloud of space dust. c. A collection of planets and moons. d. A huge cluster of stars and their planets.2. How many stars are there...
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 ...
How much data is one picture from the Hubble Telescope? How many stars are in the Milky Way Galaxy? How many feet long is the Hubble Telescope? How big is the Hubble Telescope's lens? What are the dimensions of the Hubble Telescope?
—What's the maximum number of planets that could orbit the sun? "And suddenly, as they're outside of all the light sources in our solar system, they realize we don't need as many galaxies as we thought," Gay said. "And so their estimates put us at, like, 200 billion, maybe eve...
masses similar to the Milky Way and found 378 satellite galaxies for them. Because of observational limits, this only covers satellites with a mass of about a million Suns or more. In this range our galaxy has four satellites. We know of many more, but most of them are below the mass ...
So the baby planet may seem far, but compared with many other distant stars and galaxies in our universe, it's actually very close. Our galaxy, the Milky Way, is 100,000 light years wide.Before now, astronomers thought planets had to be very close to their stars during formation. But ...
How many poles does Jupiter's magnetosphere have? How many moons does Neptune have? How many asteroids are there in the solar system? How many moons does Pluto have? How many planets away from the sun is Venus? How many planets are between Earth and the sun?
The Two Billion Earthlike Planets in the Milky Way: How Many Will Prove to Support Advanced Life?Smithsonian, Harvard