As Earthlings, we have the privilege of ooohing and aaahing at total solar eclipses, those celestial events in which the moon blocks the sun's light from hitting our planet. But is Earth the only world in our solar system that experiences this phenomenon?
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.