If an atomic bomb detonated right near your eye, the flash would be a billion times less bright than if you watched the sun explode from Earth. That just goes to show you just how powerful a supernova is. What would happen to the Earth if a star exploded nearby, and what about all of us?

Every day we share the tech news that impacts your life — and what you can do about it.

Arcade games can be tricky — and that's by design, of course. Whether it be playing SkiBall and getting it in the 100-point hole or trying to shoot the basketball as fast as you can, getting a high score can be almost impossible. But what if you used tech to ensure you got the most tickets possible? One man did just that thanks to some insane engineering.

If the Earth were one giant atom, the nucleus would be so small it would fit inside a baseball stadium. That means the rest of the world would just be electrons. So, if atoms are made of basically empty space, why doesn't light pass right through them? Why isn't everything and everyone transparent? And what makes some objects, like glass, see-through?

Physics is a branch of science that deals with the nature and properties of matter and energy. Basically, it helps us put rules to how our universe works — and, obviously, it's pretty complex. Inevitably, though, some facts may get skewed or misinterpreted. Here's one: There is no gravity in space. Turns out, there is.

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