This Earth Day, we reflect on our home planet and look at Earth from space through history.

"We are carrying back everything we learned, not only about where we went but ourselves," mission specialist Christina Koch ...

"I've never known fear like when I was stepping out on to the studio floor for that first ever one, knowing that we were ...

A river on fire in Ohio, a massive oil spill in California and a senator fighting for change: This is the story of how Earth ...

We asked tech experts to give us their predictions. The world they envision is something to look forward to.

It is one of the most recognizable obelisks in the world, but did you know the Washington Monument we know today is not the ...

Celtics on CLNS: Hugo Gonzalez on playing with Tatum for the first time: "He was looking great. He was looking amazing. We all knew he was gonna come back at a super great level ... At that practice, ...

My family and I went to Bangkok for the first time. It was great, but we made some common mistakes when planning our days and ...

Yahoo Sports senior MLB analysts Jordan Shusterman and Jake Mintz try to make sense of what is going wrong in Houston, where ...

Walking Augusta National during the Masters reveals a culture built on respect, family and tradition that feels increasingly ...