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You might have heard that the universe is infinite, but when we talk about its size, we usually refer to the observable universe. That’s because, even though the universe might be infinite, there’s only a certain amount we can see from Earth. So, how big is the observable universe? Well, it’s about 93 billion light-years in diameter. To give you an idea of what that means, a light-year ...
How to Learn More About the Universe. In case you want to take an amazing journey through the Universe from the smallest to the largest objects, this video i...
- 12 min
- 4M
- BRIGHT SIDE
You might have heard that the universe is infinite, but when we talk about its size, we usually refer to the observable universe. That’s because, even though the universe might be infinite, there’s only a certain amount we can see from Earth. So, how big is the observable universe? Well, it’s about 93 billion light-years in diameter. To give you an idea of what that means, a light-year ...
TrueSizeOf: Explore stars, planets, galaxies, black holes and the solar system's true size and distance using Google Maps.
Try entering the names of countries and states on this interactive map, and then dragging them around to compare them by superimposing one on top of another. Because this map uses the Mercator projection—a standard for many Web maps—you'll also notice how the sizes of countries change as you drag them towards the Equator or the poles.
The top ranked scientific justification for building Hubble was to determine the size and age of the Universe through observations of Cepheid variables in distant galaxies. This scientific goal was so important that it put constraints on the lower limit of the size of Hubble's primary mirror. Cepheids are a special type of variable star with ...
Is the Universe infinite? Or does it somehow fold in on itself? And if so in what shape? Join us today as explore the size of the Universe. Written and prese...
- 30 min
- 2,8M
- Cool Worlds
