Are Your Siblings Really Your Siblings?

New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reports 

A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reports 

There's a tradition around many Thanksgiving dinner tables that's as consistent as stuffing and pumpkin pie: the family stories that get told year after year. Sometimes these stories are funny; sometimes they make us roll our eyes. No matter how we feel about these tales, we r ...

Many in the U.S. this week are celebrating the holiday of Thanksgiving - which, unfortunately for many, can mean difficult conversations with family about money, politics, and even the past. At a time when old habits can re-emerge for people, host Morra Aarons-Mele revisits a con ...  Show more

Do you make a list of ways to persuade a loved one to your way of thinking? It seems many of you do. Also, are you the Michael Eavis of your family? And Grimmy joins for a quiz which, is all about himself. 

How many turkeys are consumed each year in the U.S. on Thanksgiving? And how many extraterrestrial civilizations might exist in the universe? Umm…wait…what?! Although these seem like unrelated questions, they’re not. As we'll soon find out, they’re united by math. Read the full t ...  Show more