Life's Little Mysteries answers fascinating questions about the world around you and the stuff in it, from things in the news and on your mind to crazy questions you didn't even know you had.
Energy from the sun's rays can cause skin damage and cancers. Sunscreens can absorb or reflect the dangerous UV light. Here's everything you need to know to read the labels in the sunscreen aisle.
They can reach 19 feet tall, meaning giraffes tower over the savannah they live in. So do they get struck by lightning more than other, shorter animals?
For decades, while astronomers have detected black holes equal in mass either to a few suns or to millions of suns, the missing-link black holes in between have eluded discovery.