Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Can something that exists be bad science? The multiverse pops out of quite a few theories in physics, and has been proposed as a solution to certain vexing problems. But it’s also been argued that the ...

One of the most startling scientific discoveries of recent decades is that physics appears to be fine-tuned for life. This means that for life to be possible, certain numbers in physics had to fall ...