May 6, 2025 · Do the math and you’re looking at a universe that spans around 540 sextillion miles (that’s a 54 followed by 22 zeros). That’s just the observable part—the region of space from which light has …

May 21, 2025 · And here’s where things get really weird, we don’t actually know if the universe is finite or infinite. As much as we’ve learned about the universe, science has no reliable estimate of the …

Sep 29, 2020 · As such, one light-year is the equivalent to 9 trillion kilometers / 6 trillion miles, and our Universe is 93 billion light-years in diameter. That’s how big our Universe is, and that’s not even the …

Observable Universe as a function of time and distance, in context of the expanding Universe The universe's size is unknown, and it may be infinite in extent. [14] Some parts of the universe are too …

Feb 26, 2024 · Using current estimates, the observable universe has a radius of approximately 46.5 billion light-years, which is equivalent to approximately 274 septillion …

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.

Aug 29, 2025 · They concluded that the Universe is at least 250 times larger than the observable universe, or 7 trillion lightyears across. But, ultimately, science has no reliable estimate of the actual …

Mar 29, 2021 · When we look in any direction, the furthest visible regions of the Universe are estimated to be around 46 billion light years away. That's a diameter of 540 sextillion (or 54 followed by 22...

Jul 14, 2025 · When we talk about how big the universe is, we can’t use kilometers or miles—they are too small! Instead, we use a special space distance unit: the light-year.

The observable universe is approximately 93 billion light-years in diameter. This number is derived from several considerations. A light-year, the distance light can travel in one Earth year, is 9.46 trillion …