The elusive and rare Sierra Nevada red fox has been spotted in Yosemite National Park for the first time in nearly a century.
A three-way race to build a commercially operated spaceship to shuttle astronauts -- and other paying customers -- to and from low-Earth orbit is close the finish line, with NASA aiming to award development and flight service contracts as early as next week.
A new book pays tribute to Ansel Adams and the wilderness area in California that is named for him.
For years, Elon Musk has been saying that three years after the government puts up the cash, he could have a new ride for astronauts ready to fly. On Monday, NASA took him up on that pledge.