Gathering for the holidays might seem self-explanatory — but according to Priya Parker, assuming the purpose of an event is obvious misses a chance to address what you and your guests actually need. Here’s how to add more meaning and connection this season: http://t.ted.com/iTyCitX | TED

On Edwin Hubble's birthday, here's what we can learn about the immense scale of our universe from the Hubble Deep Field images: | TED-Ed

“For the meaning you have in your life — you should feel a deep gratitude for the people who have allowed you to participate in the story that was not your own.” Watch Brian S. Lowery’s full talk here: http://t.ted.com/95RQX5P | TED

How your digestive system transforms the food you eat into the nutrients and energy that keep you alive: | TED-Ed