That's an easy arithmetic question.
A year is 365.24 days. A day is 24 hours. An hour is 60 minutes, and a minute is 60 seconds.
Light travels at 30,000,000 meters per second. Multiply all of those numbers together to get one light-year in meters. Then multiply that number by 9,000,000.
Or, you can Google "9,000,000 light years in meters" and let Google do the math. It already knows how long a light-year is.
92,000 million ly
Traveling 20 million light years at the speed of light would take 20 million years. Since we do not currently have technology that can travel at the speed of light, it would take much longer using current spacecraft technology.
A million cubic meters.
The Milky Way galaxy is much smaller than the largest known galaxy in the universe, IC 1101. IC 1101 is about 6 million light-years in diameter, whereas the Milky Way is approximately 100,000 light-years in diameter.
227.7 million kilometers.
No galaxy is 2.9 million miles away - they are much, much farther. Even the closest star in our own galaxy is much farther away than that.
Pretty much the same distance it is from us: about 2.5 million light years. The north star is about 434 light years from Earth, thousands of times closer.
No, the speed of sound is much slower than the speed of light. The speed of sound in air is around 343 meters per second, while the speed of light in a vacuum is approximately 299,792,458 meters per second.
The nearest elliptical is further away, unless you count dwarf elliptical galaxies, in which case there's one or two much closer to us. The nearest large elliptical is about 10 million light years away. The nearest dwarf elliptical is only about 0.8 million light years away.
12.2 meters = 1220 centimeters12.2 million is 12,200,000
3 million meters. A kilometer (km) is 1000 meters, so 3000 km is 3 thousand thousand- better known as 3 million- or 3,000,000.
Mega means million, so megameter is a million meters. That's the same as 1000 kilometers.