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Buy me a coffee! An interactive visualization of the enormous objects in our universe. See how the Earth compares to the Sun, black holes and the Milky Way.
Saturn would be 10 cm from the Sun, Uranus 19 cm from the Sun, and Neptune 30 cm from the Sun. Little old Pluto would typically be about 40 cm from the Sun. On this scale, however, the physical...
The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F). [3]
In this article, I will try to give you an idea of how big the universe is and explore the space around it. Key Takeaways: The observable universe is estimated to be about 92 billion light-years across.
One astronomical unit is 149,598,000 km / 92,955,887 miles, and in our top shape, we could reach it in 25 days. Now, the Universe is 93 billion light-years across, and one, just one light-year, is equivalent to 63,000 astronomical units.
How big is the universe? Based on what we can observe, the universe appears to be almost 28 billion light-years across. However, it is far larger than that.
How big is outer space? The observable universe – the part we can visibly see and measure – is estimated to be about 46.5 billion light-years in any direction from the Earth. If we imagine it as a sphere surrounding our planet, its diameter will be around 93 billion light-years.
That's a diameter of 540 sextillion (or 54 followed by 22 zeros) miles. But this is really just our best guess – nobody knows exactly how big the Universe really is. That is because we can only...
On average across its orbital path, it’s about 380,000 km from Earth. That’s already a pretty long way; nearly 30 Earths could fit side by side over that distance! Or think of it this...
How Big is the Universe? The actual spatial size of the universe is unknown. However, by measuring the observable universe, the current size of the universe is approximately 95 billion light-years in diameter.