1. How many stars are there in the Milky Way? 2. Why can't we see the Pistol Star? 3. Which is closer to the earth, the Pistol Star or the sun? 4. What can decide a star 's colour? 5. What has happened when a star becomes red? 6. Translate the last sentence into Chinese...
用howmany造句 用howmany 造句 1. How many apples are in the basket? 2. How many people attended the concert last night? 3. How many pages are in this book? 4. How many hours did you sleep last night? 5. How many miles is it from here to the beach? 6. How many students are ...
The Milky Way is our home galaxy, the spot where the Earth resides. We are not anywhere near the center —NASAsays we’re roughly 165 quadrillion miles from the galaxy’s black hole, for example — which demonstrates just how darn big the galaxy is. So how big is it, and how does i...
How far has the Hubble Telescope traveled? How many astronomical units is the Oort cloud from the sun? How many astronomical units does the Oort cloud extend? How many miles is the Oort cloud from the sun? How far can the Hubble Telescope zoom in?
Enter the Radio Telescope The Doppler Effect Milky Way Structure How Many Stars Are in the Milky Way? Exploring the Milky Way From Inside the Galaxy The Milky Way, our celestial home, has fascinated astronomers for centuries. It is a vast galaxy, a large system that includes stars, ga...
How many miles is the Oort cloud from the sun? If a star were 2 light years away, how far is it? How many light years is the Oort cloud from Earth? How many light years away can the Hubble Telescope see? What planet is one astronomical unit from the Sun?
Earth's distance from the sun averages about 93 million miles (150 million km), which scientists also call one astronomical unit (1 AU).
A light year is the distance light can travel in one year, or about 6 trillion miles. 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 ...
Is the speed of light constant? The speed of light is a universal constant in a vacuum, like the vacuum of space. However, light *can* slow down slightly when it passes through an absorbing medium, like water (225,000 kilometers per second = 140,000 miles per second) or glass (200,...
Blue Whale is the largest animal on Earth, with a weight of about 200 tons with a length of about 98 feet. It is a marine mammal animal. It is also called the sulfur-bottom whale.Answer and Explanation: A baby blue whale drinks about 190 litres of milk in a day. They store...