Your photos are probably taking up a lot of valuable storage on your iPhone. Here's how to clean it up. Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is ...

In many submerged regions, murky mud shelters strange life-forms that seem to be the key to one of the biggest mysteries of life on Earth. These creatures belong to a domain of life called the archaea ...

The biological cycle of our existence seems relatively straightforward: we’re born, we live, we die. The end. But when you examine existence at the cellular level, things get a bit more interesting.