Built on Facts

Are there more stars in the universe or atoms in a cup of coffee?
There’s a lot of stars in the universe, but then again atoms are really tiny. As it turns out, there’s very roughly about 100 billion billion stars in the observable universe. In scientific notation, that’s about 1022 stars. It’s [...]

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The speed of light is both one of the most famous and one of the most fundamental quantities in physics. Even people who don’t really follow physics can often tell you how fast it is. 186,000 miles per second is the figure usually quoted. We know that the speed of light is [...]

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